(n) a person who has suddenly risen to a higher economic status but has not gained social acceptance of others in that class, Syn. parvenu, arriviste, nouveau-riche
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
[なりきん, narikin] (n, adj-no) (1) (derog) upstart; nouveau riche; new rich; narikin; coming into wealth suddenly; (2) (See 成る・7) (orig. meaning) piece promoted to gold general (in shogi); (P)