15-Letter Words Matching ___I_____M_____

There are 13 15-letter words that match ___I_____M_____. 3 are common words, such as NONINFLAMMATORY and PUSILLANIMITIES. A rarer one is RADIOTELEMETRIC. In this set, A is the most frequent open letter (13 words). 4 words contain a doubled letter.

Full list 13

noninflammatorypusillanimitiespusillanimouslyactinochemistryschistosomiasesschistosomiasisantiferromagnetantihistaminicsantisentimentalcleistogamouslyechinodermatousnoninstrumentalradiotelemetric

About this list

Words
13 (3 common words)
Common example
noninflammatory
Rare example
radiotelemetric
Doubled letters
4
Ending in S
5
Most frequent letter
A (13)

Questions

How many 15-letter words matching ___i_____m_____ are there?

13. 3 of them are common words.

What is a common example?

NONINFLAMMATORY is among the common words in this set.