listless vs unenergetic

listless and unenergetic both are adjectives.

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

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