15-Letter Words Matching __A___I________

There are 21 15-letter words that match __A___I________. 8 are common words, such as HEARTSICKNESSES and TOASTMISTRESSES. A rarer one is TRANSPIRATIONAL. In this set, T is the most frequent open letter (21 words). 8 words contain a doubled letter.

Full list 21

heartsicknessestoastmistressestraditionalismstraditionaliststransfigurationtransliteratingtransliterationtransmigrationsfranchisabilityinapplicabilityplaintivenessestranquilizationunassailabilityunattainabilitydeacidificationreacclimatizingtraditionalizedtraditionalizestranshistoricaltransmissometertranspirational

About this list

Words
21 (8 common words)
Common example
heartsicknesses
Rare example
transpirational
Doubled letters
8
Ending in S
7
Most frequent letter
T (21)

Questions

How many 15-letter words matching __a___i________ are there?

21. 8 of them are common words.

What is a common example?

HEARTSICKNESSES is among the common words in this set.