15-Letter Words Matching I___________T__

There are 13 15-letter words that match I___________T__. 4 are common words, such as IMPRESSIONISTIC and INDIVIDUALISTIC. A rarer one is IRRATIONALISTIC. In this set, N is the most frequent open letter (13 words). 6 words contain a doubled letter.

Full list 13

impressionisticindividualisticinsignificantlyinterscholasticimmunochemistryinterpenetratedinterpenetratesimmunomodulatorindeterministicintercorrelatedintercorrelatesintransigeantlyirrationalistic

About this list

Words
13 (4 common words)
Common example
impressionistic
Rare example
irrationalistic
Doubled letters
6
Ending in S
2
Most frequent letter
N (13)

Questions

How many 15-letter words matching i___________t__ are there?

13. 4 of them are common words.

What is a common example?

IMPRESSIONISTIC is among the common words in this set.