13-Letter Words Matching ____S___L____

There are 18 13-letter words that match ____S___L____. 2 are common words, such as OVERSUPPLYING and UNDISCIPLINED. A rarer one is WHIMSICALNESS. In this set, E is the most frequent open letter (16 words). 11 words contain a doubled letter.

Full list 18

oversupplyingundisciplineduninstallableantisatelliteforestallmentindisciplinesstressfulnessunassimilableunassimilatedvraisemblanceergastoplasmsglossolalistsindisciplinedparasitologicreassemblagesreposefulnessverisimilarlywhimsicalness

About this list

Words
18 (2 common words)
Common example
oversupplying
Rare example
whimsicalness
Doubled letters
11
Ending in S
7
Most frequent letter
E (16)

Questions

How many 13-letter words matching ____s___l____ are there?

18. 2 of them are common words.

What is a common example?

OVERSUPPLYING is among the common words in this set.