underhand vs athletics

underhand is not a noun while athletics is a noun.

Word	Noun	Adjective	Verb	Adverb
underhand	No	Yes	No	Yes
athletics	Yes	No	No	No

underhand (noun)	athletics (noun)
	an active diversion requiring physical exertion and competition
	participation in sports events as an extracurricular activity
	a contest between athletes

underhand (adjective)	athletics (adjective)
with hand brought forward and up from below shoulder level
marked by deception

underhand (adverb)	athletics (adverb)
with the hand swung below shoulder level
slyly and secretly