15-Letter Words Matching I_____N________

There are 17 15-letter words that match I_____N________. 5 are common words, such as IMPECUNIOUSNESS and INATTENTIVENESS. A rarer one is IRRECONCILABLES. In this set, E is the most frequent open letter (17 words). 9 words contain a doubled letter.

Full list 17

impecuniousnessinattentivenessinexpensivenessinoffensivenessinvoluntarinessignominiousnessindefensibilityimpecuniositiesimpregnablenessindefinablenessindigenizationsinteranimationsinterindividualinterinfluencedinterinfluencesinteruniversityirreconcilables

About this list

Words
17 (5 common words)
Common example
impecuniousness
Rare example
irreconcilables
Doubled letters
9
Ending in S
13
Most frequent letter
E (17)

Questions

How many 15-letter words matching i_____n________ are there?

17. 5 of them are common words.

What is a common example?

IMPECUNIOUSNESS is among the common words in this set.