12-Letter Words Matching ________N__L

There are 23 12-letter words that match ________N__L. 8 are common words, such as BICENTENNIAL and COINCIDENTAL. A rarer one is TRIPHTHONGAL. In this set, A is the most frequent open letter (23 words). 6 words contain a doubled letter.

Full list 23

bicentennialcoincidentalcontrapuntaldepartmentalexperimentalgovernmentalinstrumentalsupplementalanticolonialcomplementalimpedimentalintegumentalintracranialmultichannelpostcolonialquinquennialadjustmentalbimillennialextracranialinterchannelmanagementalsemicolonialtriphthongal

About this list

Words
23 (8 common words)
Common example
bicentennial
Rare example
triphthongal
Doubled letters
6
Ending in S
0
Most frequent letter
A (23)

Questions

How many 12-letter words matching ________n__l are there?

23. 8 of them are common words.

What is a common example?

BICENTENNIAL is among the common words in this set.