15-Letter Words Matching I_______S______

There are 15 15-letter words that match I_______S______. 9 are common words, such as IMPERIOUSNESSES and IMPETUOUSNESSES. A rarer one is INCURIOUSNESSES. 14 words contain a doubled letter.

Full list 15

imperiousnessesimpetuousnessesimpoverishmentsinfinitesimallyingeniousnessesingenuousnessesinnocuousnessesinsidiousnessesinvidiousnessesincommensurableinjuriousnessesinterpersonallyimmunoassayableincommensurablyincuriousnesses

About this list

Words
15 (9 common words)
Common example
imperiousnesses
Rare example
incuriousnesses
Doubled letters
14
Ending in S
10

Questions

How many 15-letter words matching i_______s______ are there?

15. 9 of them are common words.

What is a common example?

IMPERIOUSNESSES is among the common words in this set.