15-Letter Words Matching ____S_I________

There are 36 15-letter words that match ____S_I________. 14 are common words, such as ACCESSIBILITIES and ADMISSIBILITIES. A rarer one is UNFOSSILIFEROUS. 18 words contain a doubled letter.

Full list 36

Common words

accessibilitiesadmissibilitiesdemystificationdigestibilitiesimpassibilitiesimpassivenessesimpossibilitiesobsessivenessesoverstimulatingtransfigurationtransliteratingtransliteration
accessibilitiesadmissibilitiesdemystificationdigestibilitiesimpassibilitiesimpassivenessesimpossibilitiesobsessivenessesoverstimulatingtransfigurationtransliteratingtransliterationtransmigrationsundistinguishedexcessivenessesoverstimulationunassailabilityvicissitudinouscrosslinguisticfetishisticallyimmiscibilitiesindisciplinableinhospitalitiesinvestigationalnecessitousnesspoststimulationpoststimulatoryrecessivenessesredistillationsrehospitalizingresistibilitiesresistivenessestranshistoricaltransmissometertranspirationalunfossiliferous

About this list

Words
36 (14 common words)
Common example
accessibilities
Rare example
unfossiliferous
Doubled letters
18
Ending in S
18

Questions

How many 15-letter words matching ____s_i________ are there?

36. 14 of them are common words.

What is a common example?

ACCESSIBILITIES is among the common words in this set.