12-Letter Words Containing UNN

There are 13 12-letter words that contain UNN. 2 are common words, such as FRONTRUNNERS and UNNOTICEABLE. A rarer one is UNNOURISHING. In this set, I is the most frequent open letter (11 words). 13 words contain a doubled letter.

Full list 13

frontrunnersunnoticeableunnegotiableunneighborlyunnewsworthyunnilhexiumsunnilpentiumunnilquadiumunnoticeablybaserunningscunnilinctusunderrunningunnourishing

About this list

Words
13 (2 common words)
Common example
frontrunners
Rare example
unnourishing
Doubled letters
13
Ending in S
4
Most frequent letter
I (11)

Questions

How many 12-letter words containing unn are there?

13. 2 of them are common words.

What is a common example?

FRONTRUNNERS is among the common words in this set.