arriviste n : a person who has suddenly risen to a higher economic status but has not gained social acceptance of others in that class [syn: upstart, parvenu, nouveau-riche]

English

Noun

1. upstart, newcomer, late arrival, nouveau riche, generally characterised as a ambitious, brash or arrogant person who thinks they know better than those more familiar with particular circumstances.

Babbitt, Philistine, Young Turk, boor, bounder, bourgeois, bright young man, cad, churl, clown, comer, emigrant, epicier, fledgling, gate-crasher, greenhorn, groundling, guttersnipe, hooligan, ill-bred fellow, immigrant, intruder, looby, lout, low fellow, modern, modern generation, modern man, modernist, modernizer, mucker, neologism, neologist, neology, neonate, neoteric, neoterism, neoterist, new arrival, new boy, new generation, new man, newcomer, nouveau riche, novus homo, parvenu, peasant, recruit, ribald, rising generation, rookie, rough, roughneck, rowdy, ruffian, settler, squatter, stowaway, stripling, tenderfoot, upstart, vulgarian, vulgarist, yokel