15-Letter Words Matching __A____T_______

There are 21 15-letter words that match __A____T_______. 7 are common words, such as ELABORATENESSES and INANIMATENESSES. A rarer one is TRANSISTORISING. In this set, I is the most frequent open letter (20 words). 13 words contain a doubled letter.

Full list 21

elaboratenessesinanimatenessesinattentivenessreapportionmenttransistorizingtransliteratingtransliterationunacceptabilitygravimetricallygravitationallyimaginativenesstranslatabilitytransmutabilityunassertivenessanacoluthicallyclandestinenessclandestinitiesfragmentarinessheadmastershipsplanimetricallytransistorising

About this list

Words
21 (7 common words)
Common example
elaboratenesses
Rare example
transistorising
Doubled letters
13
Ending in S
9
Most frequent letter
I (20)

Questions

How many 15-letter words matching __a____t_______ are there?

21. 7 of them are common words.

What is a common example?

ELABORATENESSES is among the common words in this set.