15-Letter Words Matching I____T_________

There are 17 15-letter words that match I____T_________. 9 are common words, such as ILLUSTRIOUSNESS and IMITATIVENESSES. A rarer one is INVESTIGATIONAL. In this set, N is the most frequent open letter (17 words). 9 words contain a doubled letter.

Full list 17

illustriousnessimitativenessesindoctrinationsindustrializingindustriousnessinevitabilitiesinstitutionallyintuitivenessesinventivenessesimportunatenessincentivizationimmortalizationindustrialisinginfantilizationintertwinementsinvectivenessesinvestigational

About this list

Words
17 (9 common words)
Common example
illustriousness
Rare example
investigational
Doubled letters
9
Ending in S
10
Most frequent letter
N (17)

Questions

How many 15-letter words matching i____t_________ are there?

17. 9 of them are common words.

What is a common example?

ILLUSTRIOUSNESS is among the common words in this set.