showy vs flamboyant

showy is not a noun while flamboyant is a noun.

Word	Noun	Adjective	Verb	Adverb
showy	No	Yes	No	No
flamboyant	Yes	Yes	No	No

As adjectives, showy and flamboyant are synonyms defined as:

Other synonyms of showy include splashy.

showy (noun)	flamboyant (noun)
	showy tropical tree or shrub native to Madagascar; widely planted in tropical regions for its immense racemes of scarlet and orange flowers; sometimes placed in genus Poinciana

showy (adjective)	flamboyant (adjective)
superficially attractive and stylish; suggesting wealth or expense	elaborately or excessively ornamented
(used especially of clothes) marked by conspicuous display	marked by ostentation but often tasteless
marked by ostentation but often tasteless
displaying brilliance and virtuosity