13-Letter Words Matching N________M___

There are 21 13-letter words that match N________M___. 4 are common words, such as NONCONFORMING and NONCONFORMIST. A rarer one is NORMOTHERMIAS. In this set, O is the most frequent open letter (20 words). 3 words contain a doubled letter.

Full list 21

nonconformingnonconformistnonconformitynonperformingnephrectomiesnonconformismnaphthylaminenephrectomizenonattachmentnonautonomousnoncommitmentnonconformersnonemploymentnonengagementnongovernmentnonmanagementnonmonogamousnonperformersnonprogrammernonuniformitynormothermias

About this list

Words
21 (4 common words)
Common example
nonconforming
Rare example
normothermias
Doubled letters
3
Ending in S
6
Most frequent letter
O (20)

Questions

How many 13-letter words matching n________m___ are there?

21. 4 of them are common words.

What is a common example?

NONCONFORMING is among the common words in this set.