13-Letter Words Matching U____A_______

There are 14 13-letter words that match U____A_______. 8 are common words, such as UNCLEANLINESS and UNCLEANNESSES. A rarer one is UNUSUALNESSES. 6 words contain a doubled letter.

Full list 14

uncleanlinessuncleannessesunderachievedunderachieverunderachievesunembarrasseduninhabitableunparallelledunderactivityunestablishedunimpassionedunmetabolizedunparasitizedunusualnesses

About this list

Words
14 (8 common words)
Common example
uncleanliness
Rare example
unusualnesses
Doubled letters
6
Ending in S
4

Questions

How many 13-letter words matching u____a_______ are there?

14. 8 of them are common words.

What is a common example?

UNCLEANLINESS is among the common words in this set.