15-Letter Words Matching ____T________S_

There are 26 15-letter words that match ____T________S_. 8 are common words, such as CONSTRUCTIONIST and FLIRTATIOUSNESS. A rarer one is UNMITIGATEDNESS. In this set, N is the most frequent open letter (25 words). 22 words contain a doubled letter.

Full list 26

Common words

constructionistflirtatiousnessinattentivenessmeritoriousnesspunctiliousnessrepetitiousnesstrustworthinessunobtrusivenessdeleteriousnesslightheadednesscounterresponsecrestfallenness
constructionistflirtatiousnessinattentivenessmeritoriousnesspunctiliousnessrepetitiousnesstrustworthinessunobtrusivenessdeleteriousnesslightheadednesscounterresponsecrestfallennesscryptozoologistenantiomorphisminalterablenessmountainousnesspracticablenessprestigiousnessquarterfinalistroentgenologistspontaneousnesssubstantialnesssubstantivenesstightfistednessunalterablenessunmitigatedness

About this list

Words
26 (8 common words)
Common example
constructionist
Rare example
unmitigatedness
Doubled letters
22
Ending in S
20
Most frequent letter
N (25)

Questions

How many 15-letter words matching ____t________s_ are there?

26. 8 of them are common words.

What is a common example?

CONSTRUCTIONIST is among the common words in this set.