15-Letter Words Matching _N_____M_______

There are 15 15-letter words that match _N_____M_______. 4 are common words, such as ENVIRONMENTALLY and INDETERMINACIES. A rarer one is UNCIRCUMCISIONS. In this set, I is the most frequent open letter (15 words). 4 words contain a doubled letter.

Full list 15

environmentallyindeterminaciesindeterminatelyunaccommodatingunimplementableanagrammatizingindeterminationintercommunionsuninformativelyanticlimacticalenantiomorphismenantiomorphousindeterministicintercomparisonuncircumcisions

About this list

Words
15 (4 common words)
Common example
environmentally
Rare example
uncircumcisions
Doubled letters
4
Ending in S
4
Most frequent letter
I (15)

Questions

How many 15-letter words matching _n_____m_______ are there?

15. 4 of them are common words.

What is a common example?

ENVIRONMENTALLY is among the common words in this set.