14-Letter Words Matching ________N___N_

There are 40 14-letter words that match ________N___N_. 12 are common words, such as ATTITUDINIZING and CIRCUMVENTIONS. A rarer one is UNILLUMINATING. In this set, I is the most frequent open letter (37 words). 9 words contain a doubled letter.

Full list 40

Common words

attitudinizingcircumventionscomprehensionscondescensionscontraventionsdecaffeinatingdisappointmentdiscontentmentdiscriminatingdisenchantmentindoctrinatingpredesignating
attitudinizingcircumventionscomprehensionscondescensionscontraventionsdecaffeinatingdisappointmentdiscontentmentdiscriminatingdisenchantmentindoctrinatingpredesignatingconglutinatingintertwinementoverrefinementphytoplanktonspredestinatingsulfaguanidineattitudinisingcanthaxanthinsdechlorinatingdisharmonizingexsanguinatingmethylxanthinemicroplanktonsmilliroentgensnannoplanktonsnoncarcinogensnonterminatingoverattentionsoverexpansionsoverextensionsoverorganizingpararosanilineporcelainizingpreconventionsrepristinatingsectarianizingsuperphenomenaunilluminating

About this list

Words
40 (12 common words)
Common example
attitudinizing
Rare example
unilluminating
Doubled letters
9
Ending in S
14
Most frequent letter
I (37)

Questions

How many 14-letter words matching ________n___n_ are there?

40. 12 of them are common words.

What is a common example?

ATTITUDINIZING is among the common words in this set.