15-Letter Words Matching U_____I________

There are 21 15-letter words that match U_____I________. 7 are common words, such as UNCONDITIONALLY and UNDISTINGUISHED. A rarer one is UNTRADITIONALLY. In this set, L is the most frequent open letter (18 words). 10 words contain a doubled letter.

Full list 21

unconditionallyundistinguishedunimaginativelyunrealisticallyunselfishnessesunsophisticatedunwillingnessesultramicrometerultramicroscopeunassailabilityunattainabilityunparliamentaryunprofitabilityultrafiltrationultraliberalismultramicrotomesultravirilitiesunfeelingnessesunforgivingnessunfossiliferousuntraditionally

About this list

Words
21 (7 common words)
Common example
unconditionally
Rare example
untraditionally
Doubled letters
10
Ending in S
7
Most frequent letter
L (18)

Questions

How many 15-letter words matching u_____i________ are there?

21. 7 of them are common words.

What is a common example?

UNCONDITIONALLY is among the common words in this set.