15-Letter Words Matching I____L_________

There are 13 15-letter words that match I____L_________. 6 are common words, such as INFALLIBILITIES and INTELLECTUALISM. A rarer one is INVIOLATENESSES. 9 words contain a doubled letter.

Full list 13

infallibilitiesintellectualismintellectualizeintelligentsiasintelligibilityinviolabilitiesinapplicabilityinexplicabilityintellectualityintellectualistinterlacustrineinterlineationsinviolatenesses

About this list

Words
13 (6 common words)
Common example
infallibilities
Rare example
inviolatenesses
Doubled letters
9
Ending in S
5

Questions

How many 15-letter words matching i____l_________ are there?

13. 6 of them are common words.

What is a common example?

INFALLIBILITIES is among the common words in this set.