13-Letter Words Matching I________S___

There are 30 13-letter words that match I________S___. 7 are common words, such as ILLICITNESSES and IMPERIALISTIC. A rarer one is ISOCHROMOSOME. 20 words contain a doubled letter.

Full list 30

Common words

illicitnessesimperialisticimpiousnessesinexactnessesinterspersinginterspersionirksomenessesignoblenessesillusionisticimmensenessesimpecuniosityindentureship
illicitnessesimperialisticimpiousnessesinexactnessesinterspersinginterspersionirksomenessesignoblenessesillusionisticimmensenessesimpecuniosityindentureshipinsipidnessesintrogressionimmanentisticimmortalisingingrownnessesinheritressesinhumannessesinitialnessesinspectorshipinstantnessesintensenessesintercrossinginterindustryinteriorisinginternalisingintrogressantintrogressiveisochromosome

About this list

Words
30 (7 common words)
Common example
illicitnesses
Rare example
isochromosome
Doubled letters
20
Ending in S
13

Questions

How many 13-letter words matching i________s___ are there?

30. 7 of them are common words.

What is a common example?

ILLICITNESSES is among the common words in this set.