upstart

Pronunciation:  US [ˈʌpˌstɑrt] UK [ˈʌpˌstɑː(r)t]
  • n.Pretentious new; Arrogant novice
  • v.(Cause to) suddenly jump up [out]; (Cause to) outbreaks
  • adj.An outbreak of
  • WebThe nouveau riche; The new rich; Stuffed shirt
arriviste parvenu nouveau riche