pretentious vs parvenu

pretentious is not a noun while parvenu is a noun.

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

pretentious (noun)	parvenu (noun)
	a person who has suddenly risen to a higher economic status but has not gained social acceptance of others in that class

pretentious (adjective)	parvenu (adjective)
making claim to or creating an appearance of (often undeserved) importance or distinction	of or characteristic of a parvenu
intended to attract notice and impress others	characteristic of someone who has risen economically or socially but lacks the social skills appropriate for this new position
(of a display) tawdry or vulgar