15-Letter Words Matching O__________N___

There are 17 15-letter words that match O__________N___. 3 are common words, such as OBSTRUCTIVENESS and OVERCONFIDENCES. A rarer one is OVERZEALOUSNESS. In this set, E is the most frequent open letter (17 words). 9 words contain a doubled letter.

Full list 17

obstructivenessoverconfidencesoverindulgencesodoriferousnessoverbearingnessoverrepresentedomnicompetencesopenheartednessopenmouthednessopinionatednessopprobriousnessoptoelectronicsovercompliancesoverconfidentlyoverdependencesoverlengtheningoverzealousness

About this list

Words
17 (3 common words)
Common example
obstructiveness
Rare example
overzealousness
Doubled letters
9
Ending in S
14
Most frequent letter
E (17)

Questions

How many 15-letter words matching o__________n___ are there?

17. 3 of them are common words.

What is a common example?

OBSTRUCTIVENESS is among the common words in this set.