athletics vs legal

athletics is a noun but legal is not a noun.

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

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

athletics (adjective)	legal (adjective)
	established by or founded upon law or official or accepted rules
	of or relating to jurisprudence
	relating to or characteristic of the profession of law
	allowed by official rules
	having legal efficacy or force