12-Letter Words Matching N_____M_____

There are 14 12-letter words that match N_____M_____. 5 are common words, such as NONCOMMITTAL and NONCRIMINALS. A rarer one is NONSYMMETRIC. 7 words contain a doubled letter.

Full list 14

noncommittalnoncriminalsnonflammablenymphomaniacnymphomaniasnoncommunistnonpermanentnonpermeablenonchemicalsnoncommittednoncommunitynonglamorousnonnormativenonsymmetric

About this list

Words
14 (5 common words)
Common example
noncommittal
Rare example
nonsymmetric
Doubled letters
7
Ending in S
4

Questions

How many 12-letter words matching n_____m_____ are there?

14. 5 of them are common words.

What is a common example?

NONCOMMITTAL is among the common words in this set.