15-Letter Words Matching _____U______S__

There are 18 15-letter words that match _____U______S__. 10 are common words, such as ANTIQUARIANISMS and ASSIDUOUSNESSES. A rarer one is MONONUCLEOSISES. 11 words contain a doubled letter.

Full list 18

antiquarianismsassiduousnessesimpetuousnessesingenuousnessesinnocuousnessesobstructionismsobstructionistsstrenuousnessessumptuousnessesunnaturalnessesagranulocytosesagranulocytosiscongruousnessesambiguousnessesdeciduousnessesdestructionistsinsolublenessesmononucleosises

About this list

Words
18 (10 common words)
Common example
antiquarianisms
Rare example
mononucleosises
Doubled letters
11
Ending in S
18

Questions

How many 15-letter words matching _____u______s__ are there?

18. 10 of them are common words.

What is a common example?

ANTIQUARIANISMS is among the common words in this set.