14-Letter Words Matching _______UN_____

There are 12 14-letter words that match _______UN_____. 5 are common words, such as AUTOIMMUNITIES and CONTRAPUNTALLY. A rarer one is THERMOJUNCTION. 5 words contain a doubled letter.

Full list 12

autoimmunitiescontrapuntallyinsurmountableinsurmountablysuperabundancecontrapuntistsnondisjunctionnonaccountablenoncommunitiesrediscountablesubcommunitiesthermojunction

About this list

Words
12 (5 common words)
Common example
autoimmunities
Rare example
thermojunction
Doubled letters
5
Ending in S
4

Questions

How many 14-letter words matching _______un_____ are there?

12. 5 of them are common words.

What is a common example?

AUTOIMMUNITIES is among the common words in this set.