15-Letter Words Matching ______I__E_____

There are 17 15-letter words that match ______I__E_____. 4 are common words, such as GEOENGINEERINGS and INCONSISTENCIES. A rarer one is TIGHTFISTEDNESS. In this set, N is the most frequent open letter (16 words). 12 words contain a doubled letter.

Full list 17

geoengineeringsinconsistenciesinsufficienciesmountaineeringsbioengineeringsbroadmindednessintermittenciesunparliamentaryarrondissementsbenzodiazepinesdivertissementsmicrodissectionmultimillennialnonachievementsnonengineeringsstoichiometriestightfistedness

About this list

Words
17 (4 common words)
Common example
geoengineerings
Rare example
tightfistedness
Doubled letters
12
Ending in S
14
Most frequent letter
N (16)

Questions

How many 15-letter words matching ______i__e_____ are there?

17. 4 of them are common words.

What is a common example?

GEOENGINEERINGS is among the common words in this set.