parvenu

A parvenu is an upstart, somebody who's suddenly rich but doesn't fit into his new social status. If you're a parvenu, people might also describe you as "nouveau-riche" or an "arriviste." Maybe it's not quite so insulting in French.

The Beverly Hillbillies, a sitcom from the 1960s, featured the Clampetts, classic parvenus who strike oil in their backwoods swampland. They arrive at their mansion in Beverly Hills, dressed in overalls, in their pick-up truck, with their shabby furniture strapped on top. As parvenus, they don’t fit in — to say the least. Parvenu is from French, and it's the past participle of parvenir, "arrived."

Definitions of parvenu
1

n a person who has suddenly risen to a higher economic status but has not gained social acceptance of others in that class

Synonyms:
arriviste, nouveau-riche, upstart
Types:
climber, social climber
someone seeking social prominence by obsequious behavior
junior
term of address for a disrespectful and annoying male
lion-hunter
someone who tries to attract social lions as guests
Type of:
disagreeable person, unpleasant person
a person who is not pleasant or agreeable

adj characteristic of someone who has risen economically or socially but lacks the social skills appropriate for this new position

Synonyms:
nouveau-riche, parvenue, upstart
pretentious
making claim to or creating an appearance of (often undeserved) importance or distinction

adj of or characteristic of a parvenu

Synonyms:
parvenue
new
not of long duration; having just (or relatively recently) come into being or been made or acquired or discovered

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