unhealthy vs unfit

unhealthy and unfit both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unhealthy	No	Yes	No	No
unfit	No	Yes	Yes	No

unhealthy (adjective)	unfit (adjective)
not in or exhibiting good health in body or mind	not in good physical or mental condition; out of condition
not conducive to good health	below the required standards for a purpose
detrimental to health	physically unsound or diseased

unhealthy (verb)	unfit (verb)
	make unfit or unsuitable