13-Letter Words Matching _____S__M____

There are 12 13-letter words that match _____S__M____. 4 are common words, such as IMPRISONMENTS and OVERESTIMATED. A rarer one is SUPERSYMMETRY. 4 words contain a doubled letter.

Full list 12

imprisonmentsoverestimatedoverestimatesunconsummateddepressomotorbiosystematicempoisonmentsempressementsintersegmentsinterstimulusnonsystematicsupersymmetry

About this list

Words
12 (4 common words)
Common example
imprisonments
Rare example
supersymmetry
Doubled letters
4
Ending in S
6

Questions

How many 13-letter words matching _____s__m____ are there?

12. 4 of them are common words.

What is a common example?

IMPRISONMENTS is among the common words in this set.