15-Letter Words Matching ____S_______S__

There are 26 15-letter words that match ____S_______S__. 5 are common words, such as HARPSICHORDISTS and IMPASSIVENESSES. A rarer one is WHIMSICALNESSES. In this set, S is the most frequent open letter (25 words). 16 words contain a doubled letter.

Full list 26

Common words

harpsichordistsimpassivenessesobsessivenessestranssexualismsvivisectionistsexcessivenessesincessantnessesplausiblenessesschistosomiasesschistosomiasistransvestitismsadvisablenesses
harpsichordistsimpassivenessesobsessivenessestranssexualismsvivisectionistsexcessivenessesincessantnessesplausiblenessesschistosomiasesschistosomiasistransvestitismsadvisablenessesantiseparatistsclasslessnessescleistogamouslyexcusablenesseshexosaminidasesinfusiblenessesinvisiblenessesoversweetnessesparasitologistsrecessivenessesreposefulnessesresistivenessestenosynovitiseswhimsicalnesses

About this list

Words
26 (5 common words)
Common example
harpsichordists
Rare example
whimsicalnesses
Doubled letters
16
Ending in S
25
Most frequent letter
S (25)

Questions

How many 15-letter words matching ____s_______s__ are there?

26. 5 of them are common words.

What is a common example?

HARPSICHORDISTS is among the common words in this set.