15-Letter Words Matching ____S___I______

There are 34 15-letter words that match ____S___I______. 10 are common words, such as ACCESSIBILITIES and ADMISSIBILITIES. A rarer one is UNFOSSILIFEROUS. In this set, I is the most frequent open letter (33 words). 12 words contain a doubled letter.

Full list 34

Common words

accessibilitiesadmissibilitiesdemystificationdigestibilitiesdisassociationsimpassibilitiesimpossibilitiesoverspecializedoverspecializesvivisectionistsantisyphiliticsgyrostabilizers
accessibilitiesadmissibilitiesdemystificationdigestibilitiesdisassociationsimpassibilitiesimpossibilitiesoverspecializedoverspecializesvivisectionistsantisyphiliticsgyrostabilizersirresistibilitynecessaritarianoversensitivityunassertivenessadjustabilitiesantisentimentaldecasualizationhyposensitizinghypostatizationimmiscibilitiesimpassabilitiesmetastabilitiesmonospecificitynonpsychiatristoverstabilitiesperishabilitiesprussianizationpunishabilitiesresistibilitiesrevisualizationtranspositionalunfossiliferous

About this list

Words
34 (10 common words)
Common example
accessibilities
Rare example
unfossiliferous
Doubled letters
12
Ending in S
20
Most frequent letter
I (33)

Questions

How many 15-letter words matching ____s___i______ are there?

34. 10 of them are common words.

What is a common example?

ACCESSIBILITIES is among the common words in this set.