10-Letter Words Matching ____S___U_

There are 15 10-letter words that match ____S___U_. 6 are common words, such as DISASTROUS and INCESTUOUS. A rarer one is PRAESIDIUM. In this set, R is the most frequent open letter (12 words). 4 words contain a doubled letter.

Full list 15

disastrousincestuousmeerschaumtreasonoustrousseaustrousseauxbeansproutpolysemousrobustioussinistroustransvalueuntastefulallosaurusmonestrouspraesidium

About this list

Words
15 (6 common words)
Common example
disastrous
Rare example
praesidium
Doubled letters
4
Ending in S
9
Most frequent letter
R (12)

Questions

How many 10-letter words matching ____s___u_ are there?

15. 6 of them are common words.

What is a common example?

DISASTROUS is among the common words in this set.