15-Letter Words Matching __T____T_______

There are 17 15-letter words that match __T____T_______. 2 are common words, such as AUTHORITATIVELY and INTERNATIONALLY. A rarer one is UNTRADITIONALLY. In this set, I is the most frequent open letter (16 words). 9 words contain a doubled letter.

Full list 17

authoritativelyinternationallyintermittenciesosteopathicallyalternativenessantihistaminicsantisentimentalbathymetricallycytophotometricintegrationistsinterestingnessintricatenessesmathematizationmetafictionistsretroactivitiestetramethylleaduntraditionally

About this list

Words
17 (2 common words)
Common example
authoritatively
Rare example
untraditionally
Doubled letters
9
Ending in S
8
Most frequent letter
I (16)

Questions

How many 15-letter words matching __t____t_______ are there?

17. 2 of them are common words.

What is a common example?

AUTHORITATIVELY is among the common words in this set.