15-Letter Words Matching I_E____________

There are 17 15-letter words that match I_E____________. 5 are common words, such as IDENTIFICATIONS and INEFFECTIVENESS. A rarer one is INEXCUSABLENESS. In this set, N is the most frequent open letter (16 words). 9 words contain a doubled letter.

Full list 17

identificationsineffectivenessineligibilitiesinevitabilitiesinexpensivenessidenticalnessesineffectualnessinexorabilitiesinexplicabilityinextricabilityideographicallyineducabilitiesineffablenessesineffaceabilityinefficaciouslyineradicabilityinexcusableness

About this list

Words
17 (5 common words)
Common example
identifications
Rare example
inexcusableness
Doubled letters
9
Ending in S
11
Most frequent letter
N (16)

Questions

How many 15-letter words matching i_e____________ are there?

17. 5 of them are common words.

What is a common example?

IDENTIFICATIONS is among the common words in this set.