14-Letter Words Matching _I__________A_

There are 20 14-letter words that match _I__________A_. 2 are common words, such as CIRCUMSTANTIAL and DISCIPLINARIAN. A rarer one is MICROSPHERICAL. In this set, I is the most frequent open letter (20 words). 4 words contain a doubled letter.

Full list 20

circumstantialdisciplinariandiagrammaticaldispensationaldisquisitionaldissertationaldistributionalhieroglyphicalkinesiologicallithographicalmisanthropicalbibliomaniacalbiogeochemicalbiostatisticalcivilizationaldieffenbachiasdiscographicallichenologicalmicrofibrillarmicrospherical

About this list

Words
20 (2 common words)
Common example
circumstantial
Rare example
microspherical
Doubled letters
4
Ending in S
1
Most frequent letter
I (20)

Questions

How many 14-letter words matching _i__________a_ are there?

20. 2 of them are common words.

What is a common example?

CIRCUMSTANTIAL is among the common words in this set.