13-Letter Words Matching ___I_____M___

There are 15 13-letter words that match ___I_____M___. 6 are common words, such as ANTIHISTAMINE and BRAINSTORMING. A rarer one is PYRIMETHAMINE. In this set, A is the most frequent open letter (13 words). 3 words contain a doubled letter.

Full list 15

antihistaminebrainstormingdisinvestmentenlightenmentpusillanimitypusillanimousschizothymiasangiospermousantiacademicsanticonsumersbrainstormerscleistogamiescleistogamouspenicillaminepyrimethamine

About this list

Words
15 (6 common words)
Common example
antihistamine
Rare example
pyrimethamine
Doubled letters
3
Ending in S
8
Most frequent letter
A (13)

Questions

How many 13-letter words matching ___i_____m___ are there?

15. 6 of them are common words.

What is a common example?

ANTIHISTAMINE is among the common words in this set.