14-Letter Words Matching L_________S___

There are 20 14-letter words that match L_________S___. 7 are common words, such as LIFELESSNESSES and LISTLESSNESSES. A rarer one is LUSTROUSNESSES. 19 words contain a doubled letter.

Full list 20

lifelessnesseslistlessnessesliterarinesseslonesomenesseslopsidednesseslukewarmnesseslusciousnesseslovesicknessesluminousnesseslandlessnesseslaudablenesseslegislatorshiplifelikenessesliteratenessesliverishnesseslongsomenesseslovelessnesseslovelornnesseslubberlinesseslustrousnesses

About this list

Words
20 (7 common words)
Common example
lifelessnesses
Rare example
lustrousnesses
Doubled letters
19
Ending in S
19

Questions

How many 14-letter words matching l_________s___ are there?

20. 7 of them are common words.

What is a common example?

LIFELESSNESSES is among the common words in this set.