13-Letter Words Ending in OUS

There are 132 13-letter words that end in OUS. 26 are common words, such as CARBONIFEROUS and CARTILAGINOUS. A rarer one is ZYGODACTYLOUS. In this set, E is the most frequent open letter (98 words). 20 words contain a doubled letter.

Full list 132

Common words

carboniferouscartilaginousconscientiousdiscontinuousdisharmoniousheterogeneousinconspicuousinsectivorousinstantaneousmiscellaneousmultitudinousnoncontagious
carboniferouscartilaginousconscientiousdiscontinuousdisharmoniousheterogeneousinconspicuousinsectivorousinstantaneousmiscellaneousmultitudinousnoncontagiousnoncontinuousnoninfectiousoverambitiousperspicaciousplatitudinouspusillanimoussanctimonioussemiconsciousserendipitoussuperstitioussurreptitiousunadventurousunceremoniousunpretentiousallochthonousaluminiferousantireligiousargentiferousargilliferousarteriovenousarundinaceousautocephalousautochthonousbalsamiferousbignoniaceousboraginaceousbrachypterouscalcariferouscarcinomatousconsentaneouscrassulaceousdichlamydeousentomophagousentomophilousforeconsciousfossiliferousfrumentaceousgentianaceousglobuliferousgraminivorousgymnospermousheteropterousheterosporoushymenopterousinefficaciousinhomogeneousjuglandaceouslepidopterousleptophyllouslissotrichousmagnoliaceousmembranaceousmetalliferousnickeliferousnoncontiguousnonhomologousorthognathousoverrighteousovoviviparouspapaveraceousphysoclistouspolyadelphousprolegomenousproteinaceousquartziferousrhizomorphoussemireligioussplendiferousstenopetalousstenophyllousstercoraceousstrobilaceoustetrastichoustubuliflorousumbelliferousuncontentiousangiospermousbibliolatrouscamphoraceouscavernicolouscleistogamouscondylomatousdiathermanousemphysematousenterocoelousexanthematousgarnetiferousgranulomatoushematophagousheterocystoushypercautiousmedicamentousmicrophyllousmucocutaneousmycetophagousnonautonomousnongregariousnonindigenousnonleguminousnonmonogamousnonnutritiousoverconsciousovercredulousoveringeniouspapillomatousphycomycetousplenitudinouspolychotomousporcellaneousrectitudinousstoloniferoussubbituminoussubcoriaceoussubreptitioussubterraneoussupercautioustetradynamousthermophilousultracautiouszygodactylous

About this list

Words
132 (26 common words)
Common example
carboniferous
Rare example
zygodactylous
Doubled letters
20
Ending in S
132
Most frequent letter
E (98)

Questions

How many 13-letter words ending in ous are there?

132. 26 of them are common words.

What is a common example?

CARBONIFEROUS is among the common words in this set.