12-Letter Words Starting With IRR

There are 35 12-letter words that start with IRR. 21 are common words, such as IRRADIATIONS and IRRATIONALLY. A rarer one is IRROTATIONAL. 35 words contain a doubled letter.

Full list 35

Common words

irradiationsirrationallyirredeemableirredeemablyirregardlessirregularityirrelevancesirrelevantlyirremediableirremediablyirresistibleirresistibly
irradiationsirrationallyirredeemableirredeemablyirregardlessirregularityirrelevancesirrelevantlyirremediableirremediablyirresistibleirresistiblyirresolutelyirresolutionirrespectiveirreverencesirreverentlyirreversibleirreversiblyirritabilityirritatinglyirredentismsirredentistsirreformableirrefragableirrefragablyirrelievableirremissibleirrepealableirresolvableirrespirableirresponsiveirrigationalirrelativelyirrotational

About this list

Words
35 (21 common words)
Common example
irradiations
Rare example
irrotational
Doubled letters
35
Ending in S
6

Questions

How many 12-letter words starting with irr are there?

35. 21 of them are common words.

What is a common example?

IRRADIATIONS is among the common words in this set.