11-Letter Words Matching _____U____L

There are 19 11-letter words that match _____U____L. 6 are common words, such as ATTITUDINAL and DISTRUSTFUL. A rarer one is UNBEAUTIFUL. In this set, I is the most frequent open letter (17 words). 3 words contain a doubled letter.

Full list 19

attitudinaldistrustfullatitudinalmistrustfulpleasurefulquadrupedalaltitudinalpostnuptialquincuncialscorbuticalallopurinolantenuptialantimusicalantitumoralaptitudinalbromouraciloverfulfillquincunxialunbeautiful

About this list

Words
19 (6 common words)
Common example
attitudinal
Rare example
unbeautiful
Doubled letters
3
Ending in S
0
Most frequent letter
I (17)

Questions

How many 11-letter words matching _____u____l are there?

19. 6 of them are common words.

What is a common example?

ATTITUDINAL is among the common words in this set.