15-Letter Words Matching _____N___I_____

There are 13 15-letter words that match _____N___I_____. 2 are common words, such as MECHANISTICALLY and PRECONDITIONING. A rarer one is UNDERNUTRITIONS. In this set, T is the most frequent open letter (12 words). 8 words contain a doubled letter.

Full list 13

mechanisticallypreconditioningastronauticallycommunisticallyhermeneuticallypresentationismcholinergicallymartensiticallynonconsolidatedpresynapticallyseptendecillionsupernutritionsundernutritions

About this list

Words
13 (2 common words)
Common example
mechanistically
Rare example
undernutritions
Doubled letters
8
Ending in S
2
Most frequent letter
T (12)

Questions

How many 15-letter words matching _____n___i_____ are there?

13. 2 of them are common words.

What is a common example?

MECHANISTICALLY is among the common words in this set.