15-Letter Words Matching ___S______I____

There are 20 15-letter words that match ___S______I____. 6 are common words, such as CONSANGUINITIES and CONSEQUENTIALLY. A rarer one is SUBSTANTIVIZING. In this set, N is the most frequent open letter (18 words). 9 words contain a doubled letter.

Full list 20

consanguinitiesconsequentiallydissimilaritiesnonspecializingnonsympathizerstrustworthinessquestionabilityunassailabilitybiostatisticiancrashworthinesscrosslinguisticcrystallinitieshousewifelinessmeasurabilitiesmensurabilitiesnonsaponifiablepersnicketinessreasonabilitiessubspecializingsubstantivizing

About this list

Words
20 (6 common words)
Common example
consanguinities
Rare example
substantivizing
Doubled letters
9
Ending in S
11
Most frequent letter
N (18)

Questions

How many 15-letter words matching ___s______i____ are there?

20. 6 of them are common words.

What is a common example?

CONSANGUINITIES is among the common words in this set.