15-Letter Words Matching ________T_____T

There are 12 15-letter words that match ________T_____T. 6 are common words, such as ANTIABORTIONIST and CONSERVATIONIST. A rarer one is PREFORMATIONIST. 4 words contain a doubled letter.

Full list 12

antiabortionistconservationistconstructionistinsurrectionistinterventionistpreservationistassimilationistresurrectionistcolonizationistemancipationistintellectualistpreformationist

About this list

Words
12 (6 common words)
Common example
antiabortionist
Rare example
preformationist
Doubled letters
4
Ending in S
0

Questions

How many 15-letter words matching ________t_____t are there?

12. 6 of them are common words.

What is a common example?

ANTIABORTIONIST is among the common words in this set.