13-Letter Words Matching ________A_L__

There are 17 13-letter words that match ________A_L__. 5 are common words, such as COUNTERVAILED and IMPONDERABLES. A rarer one is UNEMPLOYABLES. In this set, E is the most frequent open letter (17 words). 12 words contain a doubled letter.

Full list 17

countervailedimponderablesmonosyllablespolysyllablesprogrammablesdecasyllablesdraggletailedheterothallicoctosyllablesconsiderablescredentialleddisenthralledimperishablesintermetallicknuckleballermultimetallicunemployables

About this list

Words
17 (5 common words)
Common example
countervailed
Rare example
unemployables
Doubled letters
12
Ending in S
9
Most frequent letter
E (17)

Questions

How many 13-letter words matching ________a_l__ are there?

17. 5 of them are common words.

What is a common example?

COUNTERVAILED is among the common words in this set.