15-Letter Words Matching _________S___S_

There are 15 15-letter words that match _________S___S_. 5 are common words, such as BLOODTHIRSTIEST and DEFENSELESSNESS. A rarer one is SUPERPARASITISM. In this set, E is the most frequent open letter (14 words). 12 words contain a doubled letter.

Full list 15

bloodthirstiestdefenselessnessmeaninglessnessremorselessnessthoughtlessnessmeasurelessnesspassionlessnesspurposelessnessstandoffishnesscounterresponseemotionlessnessexhaustlessnesshyperparasitismpsychophysicistsuperparasitism

About this list

Words
15 (5 common words)
Common example
bloodthirstiest
Rare example
superparasitism
Doubled letters
12
Ending in S
10
Most frequent letter
E (14)

Questions

How many 15-letter words matching _________s___s_ are there?

15. 5 of them are common words.

What is a common example?

BLOODTHIRSTIEST is among the common words in this set.