12-Letter Words Matching ____I_____S_

There are 79 12-letter words that match ____I_____S_. 38 are common words, such as ABOLITIONISM and ABOLITIONIST. A rarer one is WEARIFULNESS. In this set, N is the most frequent open letter (70 words). 49 words contain a doubled letter.

Full list 79

Common words

abolitionismabolitionistcaptiousnesscardiologistcautiousnessclarinettistcoalitionistdistinctnessemotionalismexplicitnessfactionalismfallibleness
abolitionismabolitionistcaptiousnesscardiologistcautiousnessclarinettistcoalitionistdistinctnessemotionalismexplicitnessfactionalismfalliblenessfancifulnessgraciousnesshorriblenessimplicitnesslopsidednesslusciousnessmeetinghousemultipurposenutritionistpackinghousephilistinismphysiologistpreciousnesssectionalismsensiblenessspaciousnessspeciousnessspiritualismspiritualistspuriousnessstraightnessstudiousnesssuccinctnesstangiblenessterriblenessungainlinesscriticalnessexobiologistfactiousnessfeasiblenessflexiblenessglaciologistgloriousnessintuitionismintuitionistironicalnessmercifulnessmysticalnessoverinterestperviousnessphilistinishprolificnesssectionalisttraditionistusuriousnessuxoriousnessairtightnessbibliopegistbibliopolistbiuniquenessdetailednessemotionalistfictionaliseforciblenessgastightnesshardinggrassnonbiologistoutsidernessparkinsonismpartitionistphysicalnesspoeticalnessprecisionistpreviousnessspiritednessverticalnesswearifulness

About this list

Words
79 (38 common words)
Common example
abolitionism
Rare example
wearifulness
Doubled letters
49
Ending in S
47
Most frequent letter
N (70)

Questions

How many 12-letter words matching ____i_____s_ are there?

79. 38 of them are common words.

What is a common example?

ABOLITIONISM is among the common words in this set.