This list contained 3,338 items originally, as they were too many, the list has been trimmed to show only the top 1000 results.
See the full list below:
| Word | Plural |
|---|---|
| business | businesses |
| process | processes |
| class | classes |
| basis | bases |
| series | series |
| news | |
| success | successes |
| analysis | analyses |
| loss | losses |
| press | presses |
| access | accesses |
| species | species |
| glass | glasses |
| status | statuses |
| progress | progresses |
| gas | gases |
| crisis | crises |
| congress | congresses |
| emphasis | emphases |
| bus | buses |
| address | addresses |
| cross | crosses |
| jones | joneses |
| grass | grasses |
| dress | dresses |
| stress | stresses |
| lewis | lewises |
| focus | foci |
| mass | masses |
| awareness | awarenesses |
| illness | illnesses |
| earnings | |
| darkness | darknesses |
| boss | bosses |
| economics | |
| princess | princesses |
| tennis | tennises |
| consciousness | consciousnesses |
| louis | louis |
| effectiveness | effectivenesses |
| mathematics | |
| harris | |
| mess | messes |
| ross | ross |
| jews | |
| consensus | consensuses |
| morris | morrises |
| excess | excesses |
| witness | witnesses |
| diagnosis | diagnoses |
| weakness | weaknesses |
| ms | ms |
| hypothesis | hypotheses |
| happiness | happinesses |
| chaos | chaoses |
| fitness | fitnesses |
| virus | viruses |
| distress | distresses |
| brass | brasses |
| stimulus | stimuli |
| goodness | goodnesses |
| bonus | bonuses |
| bias | biases |
| les | leses |
| surplus | surpluses |
| thesis | theses |
| synthesis | syntheses |
| sickness | sicknesses |
| willingness | willingnesses |
| corps | corps |
| apparatus | apparatuses |
| collins | collinses |
| canvas | canvasses |
| mistress | mistresses |
| actress | |
| genius | geniuses |
| axis | axes |
| census | censuses |
| colitis | colitises |
| texas | texases |
| jacques | jacques |
| chorus | choruses |
| dealings | |
| lotus | lotuses |
| iris | irises |
| travis | traves |
| hastings | |
| moss | mosses |
| duchess | duchesses |
| madness | madnesses |
| fuss | fusses |
| sadness | sadnesses |
| debris | |
| corpus | corpora |
| circus | circuses |
| thickness | thicknesses |
| fairness | fairnesses |
| kindness | kindnesses |
| bitterness | bitternesses |
| wilderness | wildernesses |
| dickens | |
| hepatitis | hepatitises |
| nucleus | nuclei |
| diabetes | |
| impetus | impetuses |
| radius | radii |
| campus | campuses |
| chess | chesses |
| ps | |
| saunders | |
| syllabus | syllabi |
| readiness | readinesses |
| genesis | geneses |
| compass | compasses |
| loneliness | lonelinesses |
| competitiveness | |
| goddess | goddesses |
| seriousness | seriousnesses |
| bypass | bypasses |
| venus | venuses |
| jess | jesses |
| binoculars | |
| penis | penises |
| usefulness | usefulnesses |
| countess | countesses |
| oesophagus | oesophagi |
| fortress | fortresses |
| siemens | siemens |
| openness | opennesses |
| arthritis | arthritides |
| mattress | mattresses |
| psychoanalysis | psychoanalyses |
| ethos | ethe |
| locus | loci |
| forgiveness | forgivenesses |
| exodus | exoduses |
| cannabis | cannabises |
| lass | lasses |
| tallis | tallises |
| richness | richnesses |
| gis | gis |
| burgess | burgesses |
| brightness | brightnesses |
| reasonableness | reasonablenesses |
| bliss | blisses |
| empress | empresses |
| hostess | |
| genus | genera |
| tenderness | tendernesses |
| blackness | blacknesses |
| tuberculosis | tuberculoses |
| gloss | glosses |
| knickers | |
| stillness | stillnesses |
| homelessness | homelessnesses |
| harness | harnesses |
| gastritis | gastritides |
| pancreatitis | pancreatitises |
| closeness | closenesses |
| chassis | chassis |
| faeces | |
| unhappiness | unhappinesses |
| nervousness | nervousnesses |
| hardness | hardnesses |
| aerobics | |
| emptiness | emptinesses |
| marquis | marquises |
| asbestos | asbestoses |
| ass | asses |
| sweetness | sweetnesses |
| cleanliness | cleanlinesses |
| fungus | fungi |
| blindness | blindnesses |
| os | ossa |
| sharpness | sharpnesses |
| bollocks | |
| fibrosis | fibroses |
| greatness | greatnesses |
| terminus | termini |
| es | esses |
| tiredness | tirednesses |
| prospectus | prospectuses |
| unwillingness | unwillingnesses |
| prowess | prowesses |
| oesophagitis | oesophagitis |
| pathogenesis | |
| waitress | |
| attractiveness | attractivenesses |
| syphilis | |
| highness | |
| atlas | atlases |
| piss | pisses |
| prognosis | prognoses |
| hypnosis | hypnoses |
| underclass | underclasses |
| headmistress | headmistresses |
| softness | softnesses |
| minibus | minibuses |
| likeness | likenesses |
| modulus | moduli |
| baroness | baronesses |
| onus | onuses |
| uniqueness | uniquenesses |
| fullness | fullnesses |
| politeness | politenesses |
| rendezvous | rendezvous |
| stiffness | stiffnesses |
| meningitis | meningitides |
| helplessness | helplessnesses |
| mucus | mucuses |
| appropriateness | |
| metropolis | metropolises |
| recess | recesses |
| eagerness | eagernesses |
| coldness | coldnesses |
| trespass | trespasses |
| foetus | foetuses |
| friendliness | friendlinesses |
| ness | nesses |
| freshness | freshnesses |
| gentleness | gentlenesses |
| paralysis | paralyses |
| thesaurus | thesauri |
| cholangitis | cholangitides |
| selfishness | selfishnesses |
| tardis | tardises |
| distinctiveness | distinctivenesses |
| completeness | completenesses |
| airbus | airbusses |
| hiss | hisses |
| pelvis | pelvises |
| toss | tosses |
| deixis | deixes |
| psychosis | psychoses |
| antithesis | antitheses |
| phosphorus | phosphoruses |
| pancreas | pancreases |
| duress | |
| judas | judases |
| heiress | heiresses |
| biomass | biomasses |
| droppings | |
| lightness | lightnesses |
| correctness | correctnesses |
| remoteness | remotenesses |
| cypress | cypresses |
| shyness | shynesses |
| righteousness | righteousnesses |
| toughness | toughnesses |
| carelessness | carelessnesses |
| nightdress | nightdresses |
| holiness | holinesses |
| governess | |
| deafness | deafnesses |
| sclerosis | scleroses |
| octopus | octopuses |
| assertiveness | assertivenesses |
| hopelessness | hopelessnesses |
| pons | pontes |
| bronchitis | bronchitises |
| jacobs | |
| responsiveness | responsivenesses |
| photosynthesis | photosyntheses |
| pegasus | pegasuses |
| cirrhosis | cirrhoses |
| marquess | marquesses |
| weariness | wearinesses |
| buttress | buttresses |
| wickedness | wickednesses |
| recklessness | recklessnesses |
| mavis | mavises |
| fondness | fondnesses |
| drunkenness | drunkennesses |
| ras | rases |
| slowness | slownesses |
| whiteness | whitenesses |
| firmness | firmnesses |
| uterus | uteri |
| idleness | idlenesses |
| missus | missuses |
| unfairness | unfairnesses |
| self-consciousness | |
| celsius | celsius |
| indebtedness | indebtednesses |
| underpants | |
| tetanus | tetani |
| smoothness | smoothnesses |
| aegis | aegises |
| abyss | abysses |
| anus | anuses |
| tectonics | |
| bedclothes | |
| harshness | harshnesses |
| powerlessness | powerlessnesses |
| restlessness | restlessnesses |
| carcass | carcasses |
| strangeness | strangenesses |
| patois | patois |
| coolness | coolnesses |
| electrophoresis | electrophoreses |
| nakedness | nakednesses |
| neurosis | neuroses |
| vagueness | vaguenesses |
| omnibus | omnibuses |
| detritus | detritus |
| fetus | fetuses |
| wholeness | wholenesses |
| quietness | quietnesses |
| directness | directnesses |
| ugliness | uglinesses |
| tass | tasses |
| dryness | drynesses |
| madras | madrases |
| tightness | tightnesses |
| calculus | calculi |
| caress | caresses |
| dampness | dampnesses |
| cheerfulness | cheerfulnesses |
| nexus | nexuses |
| isis | isises |
| dialysis | dialyses |
| res | reses |
| opus | opuses |
| herpes | herpeses |
| thoroughness | thoroughnesses |
| forceps | forceps |
| majlis | majlises |
| ascites | ascites |
| necrosis | necroses |
| thrombosis | thromboses |
| dais | daises |
| asparagus | asparagus |
| jus | jus |
| pathos | pathoses |
| sis | sises |
| frankness | franknesses |
| hiatus | hiatus |
| self-awareness | |
| thermodynamics | |
| ruthlessness | ruthlessnesses |
| nearness | nearnesses |
| watercress | watercresses |
| eyewitness | eyewitnesses |
| fibreglass | fibreglasses |
| metamorphosis | metamorphoses |
| preparedness | preparednesses |
| laziness | lazinesses |
| rightness | rightnesses |
| facies | facies |
| praxis | praxes |
| narrowness | narrownesses |
| macroeconomics | macroeconomics |
| permissiveness | |
| manageress | manageresses |
| rudeness | rudenesses |
| doldrums | |
| cleverness | clevernesses |
| parvis | parvises |
| rhinoceros | rhinoceros |
| pres | pres |
| geophysics | |
| osteoporosis | osteoporoses |
| truss | trusses |
| unconsciousness | unconsciousnesses |
| redness | rednesses |
| trellis | trellises |
| stenosis | stenoses |
| prioress | prioresses |
| synopsis | synopses |
| boldness | boldnesses |
| dizziness | dizzinesses |
| showbusiness | |
| incubus | incubi |
| awkwardness | awkwardnesses |
| caucus | caucuses |
| discus | discuses |
| stylus | styli |
| numbness | numbnesses |
| cystitis | cystitides |
| soundness | soundnesses |
| nothingness | nothingnesses |
| unpleasantness | unpleasantnesses |
| cost-effectiveness | cost-effectivenesses |
| gallows | gallows |
| pus | |
| hippocampus | hippocampi |
| stasis | stases |
| suppleness | supplenesses |
| alms | alms |
| tripos | triposes |
| uneasiness | uneasinesses |
| alertness | alertnesses |
| acropolis | acropolises |
| clematis | clematises |
| inventiveness | inventivenesses |
| poetics | poetics |
| argus | arguses |
| nimbus | nimbi |
| lawlessness | lawlessnesses |
| clitoris | clitorises |
| backwardness | backwardnesses |
| sepsis | sepses |
| endometriosis | endometrioses |
| foolishness | foolishnesses |
| roughness | roughnesses |
| otherness | othernesses |
| calmness | calmnesses |
| stratus | strati |
| rabies | |
| eugenics | eugenics |
| cactus | cacti |
| lexis | lexises |
| vastness | vastnesses |
| camus | camus |
| steelworks | steelworks |
| heaviness | heavinesses |
| ineffectiveness | ineffectivenesses |
| epidermis | epidermides |
| fracas | fracases |
| thrombolysis | |
| cress | cresses |
| lateness | latenesses |
| lysis | |
| econometrics | |
| aeronautics | |
| anastomosis | anastomoses |
| ergonomics | |
| thymus | thymi |
| eye-witness | eye-witnesses |
| togetherness | togethernesses |
| chrysalis | chrysalises |
| aggressiveness | aggressivenesses |
| sinus | sinuses |
| neatness | neatnesses |
| suddenness | suddennesses |
| sarcophagus | sarcophagi |
| corydoras | corydoras |
| agonistes | agonistes |
| stubbornness | stubbornnesses |
| cheapness | cheapnesses |
| ordinariness | ordinarinesses |
| ironworks | ironworks |
| dungarees | |
| wetness | wetnesses |
| aerobatics | |
| plexus | plexuses |
| avionics | |
| explicitness | explicitnesses |
| mayoress | |
| albatross | albatross |
| thermos | thermoses |
| peristalsis | peristalses |
| floss | flosses |
| mandamus | mandamuses |
| sameness | samenesses |
| naturalness | naturalnesses |
| urethritis | urethritides |
| johannes | johanneses |
| toxoplasmosis | toxoplasmoses |
| wildness | wildnesses |
| morass | morasses |
| pouchitis | |
| apoptosis | apoptoses |
| gasworks | gasworks |
| nemesis | nemeses |
| thinness | thinnesses |
| bolus | boli |
| stickiness | stickinesses |
| marchioness | marchionesses |
| forgetfulness | forgetfulnesses |
| robustness | robustnesses |
| priestess | priestesses |
| gramps | gramps |
| maleness | malenesses |
| regress | regresses |
| meanness | meannesses |
| tinnitus | tinnituses |
| enteritis | enteritides |
| rhesus | rhesuses |
| cytomegalovirus | cytomegaloviruses |
| oneness | onenesses |
| dullness | dullnesses |
| sociolinguistics | |
| wariness | warinesses |
| walrus | walruses |
| handedness | handednesses |
| drowsiness | drowsinesses |
| nastiness | nastinesses |
| unreasonableness | unreasonablenesses |
| separateness | separatenesses |
| osmosis | osmoses |
| newness | newnesses |
| appendicitis | appendicitises |
| smallness | smallnesses |
| gauss | gausses |
| stewardess | |
| underclothes | |
| faithfulness | faithfulnesses |
| shortness | shortnesses |
| tbs | |
| civitas | civitates |
| bacillus | bacilli |
| loudness | loudnesses |
| greyness | greynesses |
| cohesiveness | cohesivenesses |
| narcissus | narcissuses |
| duodenitis | |
| eros | erotes |
| papyrus | papyri |
| symbiosis | symbioses |
| homesickness | homesicknesses |
| expressiveness | expressivenesses |
| abbess | abbesses |
| comprehensiveness | |
| tidiness | tidinesses |
| astrophysics | |
| soreness | sorenesses |
| hubris | hubrises |
| amniocentesis | amniocenteses |
| crocus | crocuses |
| wakefulness | wakefulnesses |
| papillomavirus | papillomaviruses |
| prophylaxis | prophylaxes |
| apotheosis | apotheoses |
| atherosclerosis | atheroscleroses |
| joss | josses |
| secateurs | |
| humus | humuses |
| dimness | dimnesses |
| abacus | abaci |
| lomas | |
| randomness | randomnesses |
| challis | challises |
| cumulus | cumuli |
| dermatitis | dermatitises |
| exegesis | exegeses |
| ess | esses |
| casualness | casualnesses |
| spaciousness | spaciousnesses |
| representativeness | |
| meaningfulness | meaningfulnesses |
| hydrolysis | hydrolyses |
| polyposis | polyposes |
| caddis | caddises |
| goss | |
| subclass | subclasses |
| flatness | flatnesses |
| beaux-arts | |
| lupus | |
| paratuberculosis | |
| headdress | headdresses |
| colossus | colossuses |
| arbitrariness | arbitrarinesses |
| aloofness | aloofnesses |
| puss | pusses |
| liveliness | livelinesses |
| airworthiness | |
| humerus | humeri |
| prettiness | prettinesses |
| trolleybus | trolleybuses |
| litmus | litmuses |
| lioness | |
| habitus | |
| shrewdness | shrewdnesses |
| subspecies | subspecies |
| creditworthiness | |
| amicus | amici |
| badlands | badlands |
| veritas | |
| tigress | |
| abscess | abscesses |
| torus | tori |
| hibiscus | hibiscuses |
| scabies | |
| fineness | finenesses |
| baldness | baldnesses |
| bleakness | bleaknesses |
| earnestness | earnestnesses |
| playfulness | playfulnesses |
| sinfulness | sinfulnesses |
| metastasis | metastases |
| semi-darkness | semi-darkness |
| eucalyptus | eucalypti |
| self-righteousness | |
| chamois | chamois |
| silliness | sillinesses |
| breathlessness | breathlessnesses |
| candidiasis | candidiases |
| phallus | phalli |
| polis | poleis |
| precis | precis |
| haves | |
| endoprosthesis | endoprostheses |
| smugness | smugnesses |
| stats | stats |
| cosiness | cosinesses |
| typhus | typhuses |
| carcinogenesis | carcinogeneses |
| oddness | oddnesses |
| dross | drosses |
| catharsis | catharses |
| resourcefulness | resourcefulnesses |
| possessiveness | |
| parthenogenesis | parthenogeneses |
| single-mindedness | |
| greenness | greennesses |
| catalysis | catalyses |
| exclusiveness | exclusivenesses |
| premiss | premisses |
| arras | arrases |
| hols | |
| animus | animuses |
| clumsiness | clumsinesses |
| diagenesis | diageneses |
| relatedness | relatednesses |
| deaconess | deaconesses |
| loveliness | lovelinesses |
| mutagenesis | mutageneses |
| rumpus | rumpuses |
| canvass | canvasses |
| parenthesis | parentheses |
| blankness | blanknesses |
| informatics | |
| decisiveness | |
| thoughtfulness | |
| incompleteness | incompletenesses |
| plexiglass | plexiglasses |
| defensiveness | defensivenesses |
| looking-glass | looking-glasses |
| ellipsis | ellipses |
| britches | |
| liss | |
| bluntness | bluntnesses |
| unevenness | unevennesses |
| mantis | mantises |
| photolysis | |
| chablis | chablis |
| orderliness | orderlinesses |
| neighbourliness | neighbourliness |
| niceness | nicenesses |
| persuasiveness | |
| femaleness | femalenesses |
| inappropriateness | inappropriatenesses |
| all-comers | |
| sheerness | sheernesses |
| hippopotamus | hippopotamuses |
| vividness | vividnesses |
| genuineness | genuinenesses |
| truthfulness | truthfulnesses |
| blueness | bluenesses |
| electrolysis | |
| awfulness | awfulnesses |
| psoriasis | psoriases |
| foss | fosses |
| vas | vasa |
| destructiveness | |
| sorceress | sorceresses |
| swiftness | swiftnesses |
| roundness | roundnesses |
| underpass | underpasses |
| watchfulness | watchfulnesses |
| testis | testes |
| biogas | biogases |
| jodhpurs | |
| pettiness | pettinesses |
| isthmus | isthmuses |
| tas | tasses |
| ibis | ibises |
| temptress | temptresses |
| nous | |
| undies | |
| wretchedness | wretchednesses |
| uselessness | uselessnesses |
| catechesis | catecheses |
| gladness | gladnesses |
| timeliness | timelinesses |
| colobus | colobuses |
| hysteresis | hystereses |
| fierceness | fiercenesses |
| foulness | foulnesses |
| agribusiness | agribusinesses |
| tyrannosaurus | tyrannosauri |
| hollowness | hollownesses |
| blandness | blandnesses |
| ingress | ingresses |
| timelessness | timelessnesses |
| lameness | lamenesses |
| cholestasis | cholestases |
| thrombus | thrombi |
| have-nots | |
| coarseness | coarsenesses |
| cyclops | cyclops |
| paediatrics | |
| amyloidosis | amyloidoses |
| compactness | |
| quickness | quicknesses |
| worthlessness | worthlessnesses |
| modus | modi |
| meiosis | meioses |
| mastitis | mastitides |
| adenovirus | adenoviruses |
| banns | |
| oestrus | oestruses |
| civvies | |
| fancy-dress | |
| vindictiveness | vindictivenesses |
| cirrus | cirri |
| murderess | murderesses |
| gastroenteritis | gastroenterites |
| literariness | |
| childishness | childishnesses |
| childlessness | |
| cryptosporidiosis | |
| ranunculus | ranunculuses |
| proboscis | proboscises |
| cholecystitis | cholecystites |
| keenness | keennesses |
| plainness | plainnesses |
| meta-analysis | meta-analyses |
| abruptness | abruptnesses |
| peritonitis | peritonitides |
| ramus | rami |
| barrenness | barrennesses |
| sarcoidosis | sarcoidoses |
| jakes | jakeses |
| slackness | slacknesses |
| protectiveness | |
| enuresis | enureses |
| godliness | godlinesses |
| steadiness | steadinesses |
| kouros | kouroi |
| naughtiness | naughtinesses |
| ripeness | ripenesses |
| battledress | battledresses |
| hoarseness | hoarsenesses |
| necropolis | necropolises |
| demographics | |
| self-analysis | |
| pretentiousness | pretentiousnesses |
| worthiness | worthinesses |
| masterclass | masterclasses |
| waterbus | waterbuses |
| calvados | calvadoses |
| allsorts | |
| busyness | |
| proctitis | proctitides |
| callousness | callousnesses |
| unfaithfulness | unfaithfulnesses |
| badness | badnesses |
| gonococcus | gonococci |
| portcullis | portcullises |
| nautilus | nautiluses |
| buss | busses |
| hermeneutics | hermeneutics |
| craziness | crazinesses |
| platypus | |
| culottes | |
| youthfulness | youthfulnesses |
| rebus | rebuses |
| manliness | manlinesses |
| steadfastness | steadfastnesses |
| primus | primuses |
| loess | loesses |
| sureness | surenesses |
| acidosis | acidoses |
| sleepiness | sleepinesses |
| untidiness | untidinesses |
| biosynthesis | biosyntheses |
| grimness | grimnesses |
| lias | |
| otitis | otitides |
| viciousness | viciousnesses |
| shallowness | shallownesses |
| schnapps | schnappses |
| steepness | steepnesses |
| telesales | |
| mos | mores |
| embryogenesis | embryogeneses |
| sus | |
| encephalitis | encephalitides |
| pylorus | pylori |
| poliovirus | polioviruses |
| crispness | crispnesses |
| avis | |
| hardiness | hardinesses |
| short-sightedness | |
| paratroops | |
| unsteadiness | unsteadinesses |
| kindliness | kindlinesses |
| staphylococcus | staphylococci |
| amaryllis | amaryllises |
| gubbins | |
| hypothalamus | hypothalami |
| patroness | patronesses |
| maquis | |
| attentiveness | attentivenesses |
| poliomyelitis | poliomyelitides |
| fastidiousness | |
| palmas | |
| energetics | |
| proprietress | |
| unfitness | unfitnesses |
| helpfulness | helpfulnesses |
| distinctness | distinctnesses |
| slimness | slimnesses |
| mildness | mildnesses |
| covetousness | covetousnesses |
| cybernetics | |
| bis | |
| financials | |
| gravitas | |
| claes | |
| paleness | palenesses |
| fatness | fatnesses |
| backwoods | |
| wistfulness | wistfulnesses |
| peacefulness | peacefulnesses |
| wrongness | wrongnesses |
| weirdness | weirdnesses |
| therapeutics | |
| feebleness | feeblenesses |
| seasickness | seasicknesses |
| starkness | starknesses |
| magnetics | |
| meaninglessness | meaninglessnesses |
| pyrotechnics | |
| unexpectedness | |
| smithereens | |
| sloppiness | sloppinesses |
| worldliness | worldlinesses |
| academicals | |
| pointlessness | pointlessnesses |
| fundus | fundi |
| orthopaedics | orthopaedics |
| pneumocystis | |
| viscountess | viscountesses |
| sleeplessness | sleeplessnesses |
| sourness | sournesses |
| brittleness | brittlenesses |
| pervasiveness | |
| thoughtlessness | |
| cess | cesses |
| lawfulness | lawfulnesses |
| shabbiness | shabbinesses |
| tear-gas | tear-gases |
| teargas | teargases |
| rickets | |
| elevenses | elevenses |
| aloneness | alonenesses |
| letterpress | letterpresses |
| fastness | fastnesses |
| mimesis | mimeses |
| actus | acti |
| cassis | cassises |
| haemostasis | haemostases |
| homeostasis | homeostases |
| falseness | falsenesses |
| wilfulness | |
| negus | neguses |
| proteus | protei |
| tonsillitis | tonsillitides |
| morphogenesis | morphogeneses |
| cantharus | canthari |
| citrus | citruses |
| aureus | aurei |
| plumpness | plumpnesses |
| exactness | exactnesses |
| weightlessness | weightlessnesses |
| shamus | shamuses |
| mitosis | mitoses |
| grossness | grossnesses |
| pleasantness | pleasantnesses |
| seamstress | seamstresses |
| fruitfulness | fruitfulnesses |
| pastis | pastises |
| meekness | meeknesses |
| indecisiveness | indecisivenesses |
| thankfulness | thankfulnesses |
| astuteness | astutenesses |
| evenness | evennesses |
| backstairs | |
| amess | amesses |
| impulsiveness | impulsivenesses |
| pinus | pinuses |
| deadness | deadnesses |
| turps | |
| telesis | |
| sapiens | sapiens |
| rawness | rawnesses |
| pes | pedes |
| graciousness | graciousnesses |
| methanogenesis | |
| psycholinguistics | |
| eurythmics | |
| gneiss | gneisses |
| deviousness | deviousnesses |
| poetess | poetesses |
| microeconomics | |
| atmospherics | |
| agrostis | agrostises |
| giddiness | giddinesses |
| connectedness | connectednesses |
| pertussis | pertusses |
| nightclothes | |
| looseness | loosenesses |
| brashness | brashnesses |
| sacredness | sacrednesses |
| dreariness | drearinesses |
| rhinitis | rhinitides |
| rhombus | rhombi |
| coyness | coynesses |
| sluggishness | sluggishnesses |
| stuffiness | stuffinesses |
| halitosis | halitoses |
| drabness | drabnesses |
| yonks | |
| triceps | triceps |
| tamas | |
| brontosaurus | brontosauruses |
| strictness | strictnesses |
| landmass | landmasses |
| amanuensis | amanuenses |
| obviousness | obviousnesses |
| trustworthiness | |
| ficus | ficuses |
| kinematics | |
| thalamus | thalami |
| polyneuritis | polyneuritides |
| microdialysis | microdialyses |
| epos | |
| forensics | |
| unworthiness | unworthinesses |
| definiteness | definitenesses |
| cunnilingus | cunnilinguses |
| earlies | |
| rictus | rictuses |
| pseudomonas | pseudomonades |
| grampus | grampuses |
| schoolmistress | schoolmistresses |
| tarsus | tarsi |
| clearness | clearnesses |
| egress | egresses |
| motocross | motocrosses |
| baculovirus | baculoviruses |
| hoss | hosses |
| osteoarthritis | osteoarthritides |
| mirabilis | mirabilises |
| classlessness | |
| riskiness | riskinesses |
| ileitis | ileitides |
| mindedness | mindednesses |
| forcefulness | forcefulnesses |
| bathos | |
| sundress | sundresses |
| retinitis | |
| bloody-mindedness | |
| coitus | coituses |
| shepherdess | |
| singleness | singlenesses |
| coveralls | |
| chilliness | chillinesses |
| sexiness | sexinesses |
| amplexus | |
| alumnus | |
| skewness | skewnesses |
| hypobiosis | |
| francais | |
| streptococcus | streptococci |
| pais | |
| smartness | smartnesses |
| faintness | faintnesses |
| deerness | |
| receptiveness | receptivenesses |
| deftness | deftnesses |
| promptness | promptnesses |
| aimlessness | aimlessnesses |
| vicus | vici |
| wholesomeness | wholesomenesses |
| criss-cross | criss-crosses |
| postmistress | postmistresses |
| polyanthus | polyanthuses |
| edginess | edginesses |
| waywardness | waywardnesses |
| asbestosis | asbestoses |
| authoress | authoresses |
| ignoramus | ignoramuses |
| inwardness | inwardnesses |
| unselfishness | unselfishnesses |
| progressiveness | |
| beastliness | beastlinesses |
| precariousness | |
| digitalis | digitalises |
| rashness | rashnesses |
| selflessness | selflessnesses |
| ichthus | ichthuses |
| knowingness | knowingnesses |
| humanness | humannesses |
| schistosomiasis | schistosomiases |
| acquisitiveness | acquisitivenesses |
| porteous | porteouses |
Note: these words have been obtained from Wiktionary and have been classified and improved through automated computer linguistics processes.