15-Letter Words Matching I___________S__

There are 54 15-letter words that match I___________S__. 22 are common words, such as IMITATIVENESSES and IMMEDIATENESSES. A rarer one is IRRITABLENESSES. In this set, N is the most frequent open letter (53 words). 47 words contain a doubled letter.

Full list 54

Common words

imitativenessesimmediatenessesimpassivenessesimperfectnessesimperiousnessesimpetuousnessesimprecisenessesimpulsivenessesinanimatenessesinclusivenessesinconspicuouslyincorrectnesses
imitativenessesimmediatenessesimpassivenessesimperfectnessesimperiousnessesimpetuousnessesimprecisenessesimpulsivenessesinanimatenessesinclusivenessesinconspicuouslyincorrectnessesingeniousnessesingenuousnessesinnocuousnessesinsidiousnessesinstantaneouslyintensivenessesintrusivenessesintuitivenessesinventivenessesinvidiousnessesichthyosaurusesidenticalnessesincapablenessesincessantnessesincrementalistsinjuriousnessesidiomaticnessesilliberalnessesillogicalnessesimaginarinessesimmovablenessesimmunodiagnosesimmunodiagnosisimmutablenessesincorruptnessesincrementalismsincuriousnessesindifferentismsindifferentistsineffablenessesinefficaciouslyinfusiblenessesinsatiatenessesinsolublenessesintegrationistsintercomparisonintricatenessesinvectivenessesinviolatenessesinvisiblenessesirasciblenessesirritablenesses

About this list

Words
54 (22 common words)
Common example
imitativenesses
Rare example
irritablenesses
Doubled letters
47
Ending in S
50
Most frequent letter
N (53)

Questions

How many 15-letter words matching i___________s__ are there?

54. 22 of them are common words.

What is a common example?

IMITATIVENESSES is among the common words in this set.