15-Letter Words Matching ____N___A______

There are 17 15-letter words that match ____N___A______. 3 are common words, such as DEMONSTRATIVELY and IMPENETRABILITY. A rarer one is UNPUNCTUALITIES. In this set, I is the most frequent open letter (16 words). 3 words contain a doubled letter.

Full list 17

demonstrativelyimpenetrabilitytyrannosaurusesdemonstrabilityimponderabilityinconsolabilityoceanographicalreconcilabilityunmanageabilitydemonstrationalimmunodiagnosesimmunodiagnosisparanormalitiesremonstrativelyretinoblastomastriangularitiesunpunctualities

About this list

Words
17 (3 common words)
Common example
demonstratively
Rare example
unpunctualities
Doubled letters
3
Ending in S
7
Most frequent letter
I (16)

Questions

How many 15-letter words matching ____n___a______ are there?

17. 3 of them are common words.

What is a common example?

DEMONSTRATIVELY is among the common words in this set.