15-Letter Words Matching _I______R______

There are 20 15-letter words that match _I______R______. 8 are common words, such as CIRCUMFERENTIAL and CIRCUMSCRIPTION. A rarer one is MISMEASUREMENTS. In this set, S is the most frequent open letter (18 words). 4 words contain a doubled letter.

Full list 20

circumferentialcircumscriptiondisconcertinglydisintegrationsdisproportionalkindergartenersmicroaggressionmisconstructiondimenhydrinatesdisconcertmentsdisembarrassingmicrosporangiummicrosporophylldisaccharidasesdisconformitiesdisproportioneddistemperaturesdithiocarbamatemicrosporocytesmismeasurements

About this list

Words
20 (8 common words)
Common example
circumferential
Rare example
mismeasurements
Doubled letters
4
Ending in S
9
Most frequent letter
S (18)

Questions

How many 15-letter words matching _i______r______ are there?

20. 8 of them are common words.

What is a common example?

CIRCUMFERENTIAL is among the common words in this set.