trashy vs gimcrack

trashy is not a noun while gimcrack is a noun.

Word	Noun	Adjective	Verb	Adverb
trashy	No	Yes	No	No
gimcrack	Yes	Yes	No	No

As adjectives, trashy and gimcrack are synonyms defined as:

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

trashy (noun)	gimcrack (noun)
	ornamental objects of no great value

trashy (adjective)	gimcrack (adjective)
tastelessly showy	tastelessly showy
cheap and inferior; of no value