13-Letter Words Matching U________R___

There are 13 13-letter words that match U________R___. 4 are common words, such as UNADVENTUROUS and UNFAMILIARITY. A rarer one is UNDERSTEERING. In this set, T is the most frequent open letter (11 words). 5 words contain a doubled letter.

Full list 13

unadventurousunfamiliarityunnecessarilyuntrustworthyumbelliferousuntransformedultrafiltrateultraliberalsultrapowerfulunbelligerentuncustomarilyunderreportedundersteering

About this list

Words
13 (4 common words)
Common example
unadventurous
Rare example
understeering
Doubled letters
5
Ending in S
3
Most frequent letter
T (11)

Questions

How many 13-letter words matching u________r___ are there?

13. 4 of them are common words.

What is a common example?

UNADVENTUROUS is among the common words in this set.