As nouns the difference between arriviste and parvenue
is that arriviste is upstart, newcomer, late arrival, nouveau riche, parvenu, generally characterised as an ambitious, brash or arrogant person who has yet to integrate with his or her new social group while parvenue is feminine equivalent of parvenu.
arriviste
English
Noun
(
en noun)
upstart, newcomer, late arrival, nouveau riche, parvenu, generally characterised as an ambitious, brash or arrogant person who has yet to integrate with his or her new social group.
See also
* social climber
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parvenue
English
Noun
(head)
Feminine equivalent of parvenu.