tatty vs gaudy

tatty is not a noun while gaudy is a noun.

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

As adjectives, tatty and gaudy are synonyms defined as:

Other synonyms of tatty include brassy, cheap, flash, flashy, garish, gimcrack, loud, meretricious, tacky, tawdry, trashy.

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

tatty (adjective)	gaudy (adjective)
tastelessly showy	(used especially of clothes) marked by conspicuous display
showing signs of wear and tear	tastelessly showy