underhanded vs athletics

underhanded is not a noun while athletics is a noun.

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

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

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