15-Letter Words Matching __N_____L______

There are 12 15-letter words that match __N_____L______. 4 are common words, such as CONGRATULATIONS and NONINTELLECTUAL. A rarer one is NONFULFILLMENTS. In this set, N is the most frequent open letter (11 words). 9 words contain a doubled letter.

Full list 12

congratulationsnonintellectualunnaturalnesseswonderfulnessescongenialnessescontravallationconvolvulaceousfanaticalnessesmontmorillonitenonconsolidatednoncorrelationsnonfulfillments

About this list

Words
12 (4 common words)
Common example
congratulations
Rare example
nonfulfillments
Doubled letters
9
Ending in S
8
Most frequent letter
N (11)

Questions

How many 15-letter words matching __n_____l______ are there?

12. 4 of them are common words.

What is a common example?

CONGRATULATIONS is among the common words in this set.