14-Letter Words Matching _____S_____S__

There are 18 14-letter words that match _____S_____S__. 10 are common words, such as ACCURSEDNESSES and AMBASSADRESSES. A rarer one is UNCHASTENESSES. 12 words contain a doubled letter.

Full list 18

accursednessesambassadressesexpressionismsexpressionistsimpressionismsimpressionistspercussionistsphotosynthesesphotosynthesispreposterouslychemosyntheseschemosynthesisnarcosynthesissuppositiouslycomposednessesconfusednessesunbiasednessesunchastenesses

About this list

Words
18 (10 common words)
Common example
accursednesses
Rare example
unchastenesses
Doubled letters
12
Ending in S
16

Questions

How many 14-letter words matching _____s_____s__ are there?

18. 10 of them are common words.

What is a common example?

ACCURSEDNESSES is among the common words in this set.