15-Letter Words Matching ____N__L_______

There are 20 15-letter words that match ____N__L_______. 3 are common words, such as DEFENSELESSNESS and NONINTELLECTUAL. A rarer one is TRIANGULARITIES. In this set, I is the most frequent open letter (19 words). 4 words contain a doubled letter.

Full list 20

defenselessnessnonintellectualreconciliationsimmunoglobulinsinconsolabilityreconcilabilityendonucleolyticimmunoblottingsinfantilizationmononucleosisesmononucleotidesnoninvolvementspolynucleotidesreconsolidatingretinoblastomasribonucleosidesribonucleotidesstrongyloidosesstrongyloidosistriangularities

About this list

Words
20 (3 common words)
Common example
defenselessness
Rare example
triangularities
Doubled letters
4
Ending in S
14
Most frequent letter
I (19)

Questions

How many 15-letter words matching ____n__l_______ are there?

20. 3 of them are common words.

What is a common example?

DEFENSELESSNESS is among the common words in this set.