arriviste (n.)

• boor
• bounder
• bourgeois
• cad
• churl
• clown
• comer
• emigrant
• fledgling
• greenhorn
• groundling
• guttersnipe
• hooligan
• immigrant
• intruder
• lout
• modern
• modernist
• neologism
• neologist
• neology
• neonate
• newcomer
• parvenu
• peasant
• recruit
• ribald
• rookie
• rough
• roughneck
• rowdy
• ruffian
• settler
• squatter
• stowaway
• stripling
• tenderfoot
• upstart
• vulgarian
• yokel