14-Letter Words Matching ______S_T_____

There are 15 14-letter words that match ______S_T_____. 2 are common words, such as CONVERSATIONAL and INTRANSITIVELY. A rarer one is SEROPOSITIVITY. 1 words contain a doubled letter.

Full list 15

conversationalintransitivelydispensationaldisquisitionalintransitivitypolyunsaturatecompensationalcondensationaldispensatoriesinappositenessmonounsaturatenonsensationalpostpositionalpostpositivelyseropositivity

About this list

Words
15 (2 common words)
Common example
conversational
Rare example
seropositivity
Doubled letters
1
Ending in S
2

Questions

How many 14-letter words matching ______s_t_____ are there?

15. 2 of them are common words.

What is a common example?

CONVERSATIONAL is among the common words in this set.