14-Letter Words Matching __S__________T

There are 22 14-letter words that match __S__________T. 8 are common words, such as DISAPPOINTMENT and DISARRANGEMENT. A rarer one is RESTRICTIONIST. In this set, I is the most frequent open letter (21 words). 3 words contain a doubled letter.

Full list 22

disappointmentdisarrangementdiscontentmentdiscouragementdisembowelmentdisenchantmentdisgruntlementobstructionistabsorbefacientabstractionistdestructionistdisconcertmentdisheartenmentpisciculturistpostadolescentassociationistdisfurnishmentmismeasurementpostcapitalistpostretirementreservationistrestrictionist

About this list

Words
22 (8 common words)
Common example
disappointment
Rare example
restrictionist
Doubled letters
3
Ending in S
0
Most frequent letter
I (21)

Questions

How many 14-letter words matching __s__________t are there?

22. 8 of them are common words.

What is a common example?

DISAPPOINTMENT is among the common words in this set.