joyless vs unhappy

joyless and unhappy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
joyless	No	Yes	No	No
unhappy	No	Yes	No	No

joyless (adjective)	unhappy (adjective)
not experiencing or inspiring joy	experiencing or marked by or causing sadness or sorrow or discontent
	generalized feeling of distress
	marked by or producing unhappiness
	causing discomfort