15-Letter Words Containing UO

There are 20 15-letter words that contain UO. 13 are common words, such as ASSIDUOUSNESSES and CONSPICUOUSNESS. A rarer one is TRIFLUOPERAZINE. In this set, N is the most frequent open letter (20 words). 16 words contain a doubled letter.

Full list 20

assiduousnessesconspicuousnessdiscontinuouslyimpetuousnessesincongruousnessinconspicuouslyingenuousnessesinnocuousnessesmellifluousnessstrenuousnessessumptuousnessessuperfluousnesstempestuousnesscongruousnessesperspicuousnesspromiscuousnessambiguousnessesanfractuositiesdeciduousnessestrifluoperazine

About this list

Words
20 (13 common words)
Common example
assiduousnesses
Rare example
trifluoperazine
Doubled letters
16
Ending in S
17
Most frequent letter
N (20)

Questions

How many 15-letter words containing uo are there?

20. 13 of them are common words.

What is a common example?

ASSIDUOUSNESSES is among the common words in this set.