lovesick vs unhappy

lovesick and unhappy both are adjectives.

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

lovesick (adjective)	unhappy (adjective)
languishing because of love	experiencing or marked by or causing sadness or sorrow or discontent
	generalized feeling of distress
	marked by or producing unhappiness
	causing discomfort