14-Letter Words Starting With IR

There are 20 14-letter words that start with IR. 8 are common words, such as IRASCIBILITIES and IRRECONCILABLE. A rarer one is IRRESPONSIBLES. In this set, L is the most frequent open letter (20 words). 19 words contain a doubled letter.

Full list 20

irascibilitiesirreconcilableirreconcilablyirregularitiesirreproachableirreproachablyirresolutenessirritabilitiesirreducibilityirrefutabilityirreparabilityirrespectivelyirrevocabilityironicalnessesirrationalismsirrationalistsirreligionistsirremovabilityirreproducibleirresponsibles

About this list

Words
20 (8 common words)
Common example
irascibilities
Rare example
irresponsibles
Doubled letters
19
Ending in S
9
Most frequent letter
L (20)

Questions

How many 14-letter words starting with ir are there?

20. 8 of them are common words.

What is a common example?

IRASCIBILITIES is among the common words in this set.