15-Letter Words Matching ___S_____I_____

There are 25 15-letter words that match ___S_____I_____. 10 are common words, such as CONSCIENTIOUSLY and CONSERVATIONISM. A rarer one is SUBSTITUTIONARY. In this set, I is the most frequent open letter (23 words). 8 words contain a doubled letter.

Full list 25

Common words

conscientiouslyconservationismconservationistconstitutionalsconstructionistperspicaciouslypessimisticallyphysiologicallypreservationistpresuppositionsconstructivismsconstructivists
conscientiouslyconservationismconservationistconstitutionalsconstructionistperspicaciouslypessimisticallyphysiologicallypreservationistpresuppositionsconstructivismsconstructivistsepiscopalianismnonsignificancepresbyterianismpresentationismpreservationismprestidigitatoranisotropicallydiastereoisomerdiastrophicallygeostrophicallynonspecificallypresynapticallysubstitutionary

About this list

Words
25 (10 common words)
Common example
conscientiously
Rare example
substitutionary
Doubled letters
8
Ending in S
4
Most frequent letter
I (23)

Questions

How many 15-letter words matching ___s_____i_____ are there?

25. 10 of them are common words.

What is a common example?

CONSCIENTIOUSLY is among the common words in this set.