15-Letter Words Matching N__________N___

There are 14 15-letter words that match N__________N___. 6 are common words, such as NEARSIGHTEDNESS and NONDEPARTMENTAL. A rarer one is NONSENSICALNESS. In this set, O is the most frequent open letter (13 words). 4 words contain a doubled letter.

Full list 14

nearsightednessnondepartmentalnondisciplinarynongovernmentalnoninflationarynonperformancesnonconformancesnonexperimentalnecessitousnessnoncoincidencesnonconcurrencesnonequivalencesnoninstrumentalnonsensicalness

About this list

Words
14 (6 common words)
Common example
nearsightedness
Rare example
nonsensicalness
Doubled letters
4
Ending in S
8
Most frequent letter
O (13)

Questions

How many 15-letter words matching n__________n___ are there?

14. 6 of them are common words.

What is a common example?

NEARSIGHTEDNESS is among the common words in this set.