15-Letter Words Matching ____I______A___

There are 22 15-letter words that match ____I______A___. 6 are common words, such as ARCHITECTURALLY and DISTINGUISHABLE. A rarer one is SILVICULTURALLY. In this set, L is the most frequent open letter (20 words). 17 words contain a doubled letter.

Full list 22

architecturallydistinguishableinstitutionallypessimisticallyphysiologicallyprehistoricallycharismaticallydistinguishablygravimetricallygravitationallyhorticulturallyinquisitoriallyinspirationallynonsignificancecholinergicallycholinesterasescombinatoriallynonbiologicallypectinesterasesplanimetricallypremillenniallysilviculturally

About this list

Words
22 (6 common words)
Common example
architecturally
Rare example
silviculturally
Doubled letters
17
Ending in S
2
Most frequent letter
L (20)

Questions

How many 15-letter words matching ____i______a___ are there?

22. 6 of them are common words.

What is a common example?

ARCHITECTURALLY is among the common words in this set.