flamboyant vs pretentious

flamboyant is a noun but pretentious is not a noun.

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

flamboyant (noun)	pretentious (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

flamboyant (adjective)	pretentious (adjective)
elaborately or excessively ornamented	making claim to or creating an appearance of (often undeserved) importance or distinction
marked by ostentation but often tasteless	intended to attract notice and impress others
	(of a display) tawdry or vulgar