unenergetic vs listless

unenergetic and listless both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unenergetic	No	Yes	No	No
listless	No	Yes	No	No

unenergetic (adjective)	listless (adjective)
deficient in alertness or activity	lacking zest or vivacity
not inclined to be enterprising	marked by low spirits; showing no enthusiasm