15-Letter Words Matching ___N_________S_

There are 21 15-letter words that match ___N_________S_. 4 are common words, such as CARNIVOROUSNESS and DOWNHEARTEDNESS. A rarer one is UNINHIBITEDNESS. 17 words contain a doubled letter.

Full list 21

carnivorousnessdownheartednessmeaninglessnesswrongheadednessmagnanimousnessstandoffishnessclandestinenesscounterresponseemancipationistenantiomorphismmountainousnessopenheartednessopenmouthednessopinionatednessphenomenologistroentgenologistroundheadednessspontaneousnesstransparentnessunendurablenessuninhibitedness

About this list

Words
21 (4 common words)
Common example
carnivorousness
Rare example
uninhibitedness
Doubled letters
17
Ending in S
16

Questions

How many 15-letter words matching ___n_________s_ are there?

21. 4 of them are common words.

What is a common example?

CARNIVOROUSNESS is among the common words in this set.