13-Letter Words Matching __S____U_____

There are 20 13-letter words that match __S____U_____. 9 are common words, such as ASSIDUOUSNESS and DISTINGUISHED. A rarer one is UNSERIOUSNESS. In this set, T is the most frequent open letter (17 words). 6 words contain a doubled letter.

Full list 20

assiduousnessdistinguisheddistinguishesdistributionsinsidiousnessmiscalculatedmiscalculatesmisconductingresentfulnessabsquatulatedabsquatulatesdistributablemasterfulnessmisevaluatingmisevaluationpostdebutantepostdiluvianspostinauguralposttraumaticunseriousness

About this list

Words
20 (9 common words)
Common example
assiduousness
Rare example
unseriousness
Doubled letters
6
Ending in S
10
Most frequent letter
T (17)

Questions

How many 13-letter words matching __s____u_____ are there?

20. 9 of them are common words.

What is a common example?

ASSIDUOUSNESS is among the common words in this set.