15-Letter Words Matching ____T__U_______

There are 21 15-letter words that match ____T__U_______. 12 are common words, such as AMBITIOUSNESSES and BOUNTEOUSNESSES. A rarer one is VEXATIOUSNESSES. 19 words contain a doubled letter.

Full list 21

ambitiousnessesbounteousnessesbountifulnessesbumptiousnessesconstitutionalscourteousnessesfacetiousnessesfractiousnesseshealthfulnessesimpetuousnessesrighteousnessessumptuousnessesbeauteousnessesplentifulnessesbeautifulnessesmonstrousnessesplenteousnessesseditiousnessessubstitutionaryundutifulnessesvexatiousnesses

About this list

Words
21 (12 common words)
Common example
ambitiousnesses
Rare example
vexatiousnesses
Doubled letters
19
Ending in S
20

Questions

How many 15-letter words matching ____t__u_______ are there?

21. 12 of them are common words.

What is a common example?

AMBITIOUSNESSES is among the common words in this set.