There are a total of 505 10-letter words ending in 'ous', and the number may vary in different dictionaries. You can specify the dictionary and order.
- abdominous 19
- abstemious 17
- acephalous 20
- adulterous 14
- alacritous 15
- albuminous 20
- alliaceous 16
- allogamous 18
- amphibious 22
- anadromous 16
- anasarcous 15
- anatropous 15
- antonymous 18
- apocarpous 20
- aposporous 17
- aquiferous 24
- areligious 14
- arenaceous 15
- armigerous 16
- auriferous 15
- auspicious 18
- autoecious 15
- autogamous 17
- autogenous 15
- autologous 15
- autonomous 16
- autotomous 15
- avaricious 18
- bargainous 17
- barratrous 14
- battailous 15
- bituminous 19
- blusterous 16
- boisterous 14
- cactaceous 20
- cadaverous 19
- calamitous 18
- calcareous 18
- calcarious 18
- caliginous 18
- calumnious 20
- cancellous 20
- capricious 20
- censorious 15
- ceruminous 19
- chivalrous 21
- circuitous 18
- clangorous 18
- coetaneous 15
- commodious 21
- coniferous 18
- contagious 17
- contiguous 18
- continuous 17
- coriaceous 17
- courageous 17
- curvaceous 22
- curvacious 22
- decapodous 19
- despiteous 15
- diadromous 16
- diaphanous 18
- dimorphous 20
- disastrous 12
- dispiteous 15
- distichous 17
- drupaceous 19
- eczematous 26
- edentulous 15
- endogamous 18
- endogenous 16
- epiphanous 20
- equanimous 25
- ericaceous 17
- euphonious 18
- extraneous 19
- facinorous 18
- factitious 17
- fallacious 19
- fastidious 15
- felicitous 18
- fictitious 17
- flagitious 17
- foliaceous 18
- folivorous 19
- foraminous 18
- fortuitous 15
- fuliginous 19
- gangrenous 17
- gelatinous 15
- glamourous 18
- gluttonous 16
- gramineous 17
- gratuitous 14
- gregarious 15
- gynandrous 18
- halogenous 17
- harmonious 17
- hellacious 18
- hemizygous 29
- herbaceous 19
- hexamerous 23
- homogamous 21
- homogenous 19
- homologous 19
- homonymous 22
- homozygous 29
- horrendous 15
- hypogynous 23
- idolatrous 13
- impervious 21
- incautious 16
- incestuous 16
- indecorous 16
- indigenous 16
- infectious 18
- inglorious 15
- iniquitous 22
- innumerous 17
- iridaceous 15
- keratinous 16
- languorous 16
- lanuginous 17
- lascivious 19
- leguminous 19
- libidinous 17
- licentious 16
- liliaceous 16
- lipomatous 18
- longaevous 19
- loquacious 25
- lubricious 19
- luciferous 19
- lucifugous 22
- lugubrious 19
- magnolious 18
- malodorous 16
- malvaceous 22
- marvellous 20
- membranous 21
- mendacious 19
- menstruous 16
- meticulous 19
- migrainous 17
- miraculous 19
- misogynous 19
- monandrous 17
- monestrous 15
- monoecious 18
- monogamous 20
- monogynous 20
- monosemous 18
- monotonous 16
- monozygous 28
- mordacious 18
- myrtaceous 19
- mysterious 16
- myxomatous 26
- nectareous 15
- nidicolous 17
- nidifugous 19
- nonaqueous 23
- nonferrous 16
- nongaseous 15
- nonobvious 20
- nonserious 13
- nonviscous 20
- nuciferous 19
- nutritious 13
- obsequious 24
- octamerous 17
- oedematous 15
- oleaginous 15
- oleiferous 15
- olivaceous 19
- omnivorous 19
- omophagous 21
- outrageous 14
- paralogous 17
- paronymous 20
- pediculous 20
- pellagrous 18
- perfidious 18
- perigynous 19
- perjurious 24
- pernicious 18
- plunderous 18
- polygamous 22
- polygynous 22
- polymerous 20
- polysemous 20
- poriferous 17
- portentous 15
- posthumous 20
- precarious 17
- precocious 20
- predaceous 18
- predacious 18
- prodigious 17
- propitious 17
- prosperous 17
- proteinous 15
- pugnacious 21
- pupiparous 21
- pyrogenous 19
- rampageous 19
- rebellious 16
- rendezvous 26
- ridiculous 17
- robustious 15
- roisterous 11
- rubiginous 18
- salubrious 16
- saxicolous 22
- scandalous 17
- scrofulous 19
- scrupulous 20
- scurrilous 16
- sequacious 24
- serotinous 12
- sinistrous 12
- slanderous 14
- slumberous 19
- solicitous 15
- spirituous 15
- splendrous 17
- stertorous 11
- stridulous 14
- struthious 14
- stupendous 17
- subaqueous 25
- sulfureous 17
- sulphurous 19
- suspicious 18
- syncarpous 20
- synonymous 20
- tendrilous 14
- tenebrious 15
- testaceous 14
- theonomous 17
- thunderous 16
- traitorous 11
- treasonous 12
- tremendous 16
- trichinous 17
- tubicolous 19
- tuffaceous 21
- tumultuous 18
- ubiquitous 25
- umbrageous 20
- undesirous 14
- ungenerous 16
- ungracious 18
- unhumorous 19
- unrigorous 15
- unvirtuous 18
- uproarious 15
- velutinous 18
- victorious 18
- villainous 18
- violaceous 19
- viraginous 18
- viviparous 22
- vociferous 21
- voluminous 21
- voluptuous 21
- xenogamous 24
- zoophagous 27
- zoophilous 26
- rancourous 12
- acanaceous 14
- acarpelous 14
- aceraceous 14
- acinaceous 14
- acrogenous 13
- acronymous 17
- adactylous 16
- aeruginous 11
- allomerous 12
- allonymous 15
- amatorious 12
- amylaceous 17
- anarthrous 13
- ancipitous 14
- anoestrous 10
- anonaceous 12
- antilogous 11
- antimonous 12
- apotropous 14
- astomatous 12
- automatous 12
- avenaceous 15
- barretrous 12
- bipetalous 14
- bismuthous 17
- byssaceous 17
- cacuminous 16
- catarrhous 15
- ceriferous 15
- chunderous 16
- chylaceous 20
- cistaceous 14
- coccineous 16
- colostrous 12
- concinnous 14
- cornaceous 14
- cretaceous 14
- cupidinous 15
- cymiferous 20
- cynopodous 18
- decagynous 17
- decamerous 15
- decandrous 14
- deceptious 15
- degenerous 12
- didelphous 17
- didynamous 17
- dipetalous 13
- diphyllous 19
- disepalous 13
- dispermous 15
- dithionous 14
- ectogenous 13
- ephemerous 17
- erinaceous 12
- exceptious 21
- exophagous 23
- exosporous 19
- fetiparous 15
- fibrillous 15
- fimicolous 17
- flatterous 13
- florideous 14
- flosculous 15
- founderous 14
- fucivorous 18
- fulmineous 15
- gemmaceous 17
- geophagous 17
- geophilous 16
- glanderous 12
- glandulous 12
- gliomatous 13
- glumaceous 15
- goloptious 13
- goluptious 13
- hexagynous 24
- hexandrous 21
- hirudinous 14
- homogonous 16
- homotonous 15
- humicolous 17
- hylotomous 18
- hypogaeous 19
- hypogenous 19
- immeritous 14
- implexuous 21
- impostrous 14
- insensuous 10
- insomnious 12
- isochroous 15
- isopterous 12
- isosporous 12
- isotropous 12
- jaspideous 20
- jeopardous 20
- juncaceous 21
- kumarahous 19
- laniferous 13
- lanigerous 11
- lardaceous 13
- lauraceous 12
- limicolous 14
- limivorous 15
- lysigenous 14
- marlacious 14
- meliaceous 14
- metestrous 12
- miasmatous 14
- misandrous 13
- moliminous 14
- mollitious 12
- molluscous 14
- monanthous 15
- monocerous 14
- monoculous 14
- monogenous 13
- monomerous 14
- monotocous 14
- monoxylous 22
- monstruous 12
- morbillous 14
- morigerous 13
- mucedinous 15
- muciferous 17
- multivious 15
- myophilous 20
- nubiferous 15
- nubigenous 13
- nucivorous 15
- ochraceous 17
- octandrous 13
- octogynous 16
- octopodous 15
- oleraceous 12
- omniferous 15
- omnigenous 13
- omniparous 14
- oncogenous 13
- orchideous 16
- ossiferous 13
- ossivorous 13
- ostraceous 12
- outdacious 13
- paleaceous 14
- palladious 13
- palmaceous 16
- paludinous 13
- papaverous 17
- paroecious 14
- pemphigous 20
- pennaceous 14
- penumbrous 16
- periculous 14
- petroleous 12
- piliferous 15
- polygenous 16
- polypodous 18
- polytocous 17
- pomiferous 17
- pompelmous 18
- porphyrous 20
- porraceous 14
- preludious 13
- procacious 16
- procoelous 14
- prolixious 19
- puberulous 14
- pultaceous 14
- pupigerous 15
- quotatious 19
- rampacious 16
- ranivorous 13
- recidivous 16
- reptilious 12
- rotiferous 13
- roysterous 13
- rubiaceous 14
- rupicolous 14
- ruthenious 13
- saliferous 13
- sarmentous 12
- saxicavous 22
- scrutinous 12
- sebiferous 15
- setiferous 13
- setigerous 11
- solipedous 13
- soniferous 13
- spadiceous 15
- spinaceous 14
- spondylous 16
- stamineous 12
- stemmatous 14
- stomachous 17
- streperous 12
- strepitous 12
- stromatous 12
- subfuscous 17
- subspinous 14
- suspirious 12
- symphilous 20
- symphylous 23
- synandrous 14
- synanthous 16
- synoecious 15
- tartareous 10
- telegonous 11
- tiliaceous 12
- tophaceous 17
- triandrous 11
- tricrotous 12
- trifarious 13
- trioecious 12
- tripterous 12
- triticeous 12
- typhaceous 20
- ultroneous 10
- uniflorous 13
- unperilous 12
- unpopulous 14
- veneficous 18
- ventricous 15
- veridicous 16
- viniferous 16
- viticolous 15
- vitiferous 16
- voraginous 14
- xenogenous 18
- xylogenous 21
- xylotomous 22
- zoochorous 24
- zoolatrous 19
- zoophobous 26
- zoosporous 21
There are 505 10-letter words ending in ous in the well-known word game dictionary, 225 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 495 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 269 in the Words with Friends (WWF) dictionary.
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