15-Letter Words Matching _N___U_________

There are 20 15-letter words that match _N___U_________. 9 are common words, such as ANTIQUARIANISMS and INGENUOUSNESSES. A rarer one is UNENDURABLENESS. In this set, S is the most frequent open letter (19 words). 9 words contain a doubled letter.

Full list 20

antiquarianismsingenuousnessesinnocuousnessesinscrutablenessinstrumentalistinstrumentalityinstrumentationinvoluntarinessunnaturalnessesinstructorshipsinstrumentalismantisubversionsantisubversivesantituberculousendonucleolyticinexcusablenessinsolublenessesinstructivenessinteruniversityunendurableness

About this list

Words
20 (9 common words)
Common example
antiquarianisms
Rare example
unendurableness
Doubled letters
9
Ending in S
14
Most frequent letter
S (19)

Questions

How many 15-letter words matching _n___u_________ are there?

20. 9 of them are common words.

What is a common example?

ANTIQUARIANISMS is among the common words in this set.