gaudy vs sporty

gaudy is a noun but sporty is not a noun.

Word	Noun	Adjective	Verb	Adverb
gaudy	Yes	Yes	No	No
sporty	No	Yes	No	No

As adjectives, gaudy and sporty are synonyms defined as:

gaudy and sporty: (used especially of clothes) marked by conspicuous display

Other synonyms of gaudy include flashy, jazzy, showy.

gaudy (noun)	sporty (noun)
(Britain) a celebratory reunion feast or entertainment held at a college

gaudy (adjective)	sporty (adjective)
(used especially of clothes) marked by conspicuous display	appropriate for sport or engagement in a sport
tastelessly showy	(used especially of clothes) marked by conspicuous display
	exhibiting or calling for sportsmanship or fair play