15-Letter Words Matching ____E_____L____

There are 12 15-letter words that match ____E_____L____. 2 are common words, such as PERPENDICULARLY and TATTERDEMALIONS. A rarer one is SYMMETRICALNESS. In this set, N is the most frequent open letter (12 words). 7 words contain a doubled letter.

Full list 12

perpendicularlytatterdemalionshendecasyllableincrementalistsunspectacularlyhendecasyllabicincrementalismsnonmetropolitannonsensicalnessseptendecillionsuspensefulnesssymmetricalness

About this list

Words
12 (2 common words)
Common example
perpendicularly
Rare example
symmetricalness
Doubled letters
7
Ending in S
6
Most frequent letter
N (12)

Questions

How many 15-letter words matching ____e_____l____ are there?

12. 2 of them are common words.

What is a common example?

PERPENDICULARLY is among the common words in this set.