15-Letter Words Matching ____N______N___

There are 18 15-letter words that match ____N______N___. 8 are common words, such as ADVENTUROUSNESS and DEFENSELESSNESS. A rarer one is UNCONCERNEDNESS. In this set, S is the most frequent open letter (17 words). 11 words contain a doubled letter.

Full list 18

adventurousnessdefenselessnessdisinheritanceshumanitarianismincongruousnessnoninflationaryreconnaissancesunconsciousnessdisenchantinglyinsensitivenessplainspokennesscolonizationistdisinflationarydomineeringnessnoninstrumentalpersnicketinesssaponaceousnessunconcernedness

About this list

Words
18 (8 common words)
Common example
adventurousness
Rare example
unconcernedness
Doubled letters
11
Ending in S
12
Most frequent letter
S (17)

Questions

How many 15-letter words matching ____n______n___ are there?

18. 8 of them are common words.

What is a common example?

ADVENTUROUSNESS is among the common words in this set.