unfit vs halt

unfit is not a noun while halt is a noun.

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

unfit (noun)	halt (noun)
	an interruption or temporary suspension of progress or movement
	the event of something ending
	the state of inactivity following an interruption

unfit (adjective)	halt (adjective)
not in good physical or mental condition; out of condition	disabled in the feet or legs
below the required standards for a purpose
physically unsound or diseased

unfit (verb)	halt (verb)
make unfit or unsuitable	stop the flow of a liquid
	come to a halt, stop moving
	cause to come to an abrupt stop
	stop from happening or developing