13-Letter Words Matching ______OU_____

There are 99 13-letter words that match ______OU_____. 59 are common words, such as AMBITIOUSNESS and AMORPHOUSNESS. A rarer one is UNSERIOUSNESS. In this set, N is the most frequent open letter (99 words). 90 words contain a doubled letter.

Full list 99

Common words

ambitiousnessamorphousnessanalogousnessassiduousnessatrociousnessaudaciousnessbackgroundersbounteousnessbumptiousnesscapaciousnessconsciousnesscourteousness
ambitiousnessamorphousnessanalogousnessassiduousnessatrociousnessaudaciousnessbackgroundersbounteousnessbumptiousnesscapaciousnessconsciousnesscourteousnesscredulousnessdeliciousnessdeliriousnessdexterousnessegregiousnessfacetiousnessferociousnessforegroundingfractiousnessfrivolousnessgarrulousnesshilariousnessimperiousnessimpetuousnessingeniousnessingenuousnessinnocuousnessinsidiousnessinvidiousnessjudiciousnesslaboriousnesslecherousnesslitigiousnessludicrousnessluxuriousnessmaliciousnessmelodiousnessmomentousnessnefariousnessobliviousnessobnoxiousnessofficiousnesspenuriousnessponderousnessquerulousnessrapaciousnessreligiousnessrighteousnesssalaciousnessstrenuousnesssumptuousnesstenaciousnesstremulousnessventurousnessvicariousnessvivaciousnessvoraciousnessanomalousnessbarbarousnessbeauteousnessclamorousnesscongruousnessdangerousnessdeciduousnesserroneousnessfugaciousnessglamorousnessglutinousnessinjuriousnessmarvelousnessmonstrousnessmurderousnessnonporousnessseditiousnessunanimousnessundiscouragedveraciousnessvexatiousnessambiguousnessanonymousnessbackgroundingfeloniousnesshazardousnessincuriousnessintermountainoutreboundingpendulousnessplenteousnesspreannouncingrapturousnessrediscountingsagaciousnesssulfurousnesstransmountaintroublousnessundercountingunseriousness

About this list

Words
99 (59 common words)
Common example
ambitiousness
Rare example
unseriousness
Doubled letters
90
Ending in S
90
Most frequent letter
N (99)

Questions

How many 13-letter words matching ______ou_____ are there?

99. 59 of them are common words.

What is a common example?

AMBITIOUSNESS is among the common words in this set.