15-Letter Words Matching ____U________S_

There are 12 15-letter words that match ____U________S_. 3 are common words, such as PICTURESQUENESS and RESOURCEFULNESS. A rarer one is PREJUDICIALNESS. In this set, N is the most frequent open letter (12 words). 11 words contain a doubled letter.

Full list 12

picturesquenessresourcefulnessventuresomenessaccountablenesscompunctionlessmeasurelessnessperfunctorinessrumbustiousnessubiquitarianismunequivocalnessexhaustlessnessprejudicialness

About this list

Words
12 (3 common words)
Common example
picturesqueness
Rare example
prejudicialness
Doubled letters
11
Ending in S
11
Most frequent letter
N (12)

Questions

How many 15-letter words matching ____u________s_ are there?

12. 3 of them are common words.

What is a common example?

PICTURESQUENESS is among the common words in this set.