15-Letter Words Matching _N____N________

There are 31 15-letter words that match _N____N________. 9 are common words, such as ENVIRONMENTALLY and INATTENTIVENESS. A rarer one is UNDERINFLATIONS. In this set, I is the most frequent open letter (30 words). 9 words contain a doubled letter.

Full list 31

Common words

environmentallyinattentivenessinexpensivenessinoffensivenessinvoluntarinessuncleanlinessesundemonstrativeunintentionallyunreconstructedantepenultimateindefensibilityontogenetically
environmentallyinattentivenessinexpensivenessinoffensivenessinvoluntarinessuncleanlinessesundemonstrativeunintentionallyunreconstructedantepenultimateindefensibilityontogeneticallypneumonectomiesundependabilityunderinvestmentanticonvulsantsanticonvulsivesantimanagementsantimonarchicalantimonarchistsantimonopolistsantisentimentalindefinablenessindigenizationsinteranimationsinterindividualinterinfluencedinterinfluencesinteruniversityunchronologicalunderinflations

About this list

Words
31 (9 common words)
Common example
environmentally
Rare example
underinflations
Doubled letters
9
Ending in S
16
Most frequent letter
I (30)

Questions

How many 15-letter words matching _n____n________ are there?

31. 9 of them are common words.

What is a common example?

ENVIRONMENTALLY is among the common words in this set.