14-Letter Words Matching __I_______N___

There are 16 14-letter words that match __I_______N___. 5 are common words, such as BOISTEROUSNESS and CHIVALROUSNESS. A rarer one is SPIRITLESSNESS. In this set, S is the most frequent open letter (14 words). 12 words contain a doubled letter.

Full list 16

boisterousnesschivalrousnessneighborlinessutilitarianismweightlessnessblithesomenessepicontinentalepiphenomenonsfriendlessnessiniquitousnessquintillionthsubiquitousnessinimitablenessopisthobranchsquincentennialspiritlessness

About this list

Words
16 (5 common words)
Common example
boisterousness
Rare example
spiritlessness
Doubled letters
12
Ending in S
13
Most frequent letter
S (14)

Questions

How many 14-letter words matching __i_______n___ are there?

16. 5 of them are common words.

What is a common example?

BOISTEROUSNESS is among the common words in this set.