15-Letter Words Matching _M_________S___

There are 17 15-letter words that match _M_________S___. 11 are common words, such as AMBITIOUSNESSES and AMORPHOUSNESSES. A rarer one is IMMUTABLENESSES. In this set, N is the most frequent open letter (17 words). 17 words contain a doubled letter.

Full list 17

ambitiousnessesamorphousnessesimitativenessesimmediatenessesimpassivenessesimperfectnessesimperiousnessesimpetuousnessesimprecisenessesimpressionisticimpulsivenessesimmunochemistryambiguousnessesimaginarinessesimmovablenessesimmunodiffusionimmutablenesses

About this list

Words
17 (11 common words)
Common example
ambitiousnesses
Rare example
immutablenesses
Doubled letters
17
Ending in S
14
Most frequent letter
N (17)

Questions

How many 15-letter words matching _m_________s___ are there?

17. 11 of them are common words.

What is a common example?

AMBITIOUSNESSES is among the common words in this set.