15-Letter Words Matching __N__M_________

There are 21 15-letter words that match __N__M_________. 10 are common words, such as CONTEMPORANEITY and CONTEMPORANEOUS. A rarer one is SENTIMENTALISES. In this set, E is the most frequent open letter (21 words). 4 words contain a doubled letter.

Full list 21

contemporaneitycontemporaneousfundamentalismsfundamentalistsnoncommunicablenonsympathizerssentimentalismssentimentalistssentimentalizedsentimentalizescontemplativelycontemptibilitynoncommissionedrenormalizationnincompooperiesnoncombustiblesnoncompressiblenoncomputerizednonsimultaneoussentimentalisedsentimentalises

About this list

Words
21 (10 common words)
Common example
contemporaneity
Rare example
sentimentalises
Doubled letters
4
Ending in S
11
Most frequent letter
E (21)

Questions

How many 15-letter words matching __n__m_________ are there?

21. 10 of them are common words.

What is a common example?

CONTEMPORANEITY is among the common words in this set.