nouveau-riche adj 1: characteristic of someone who has risen economically or socially but lacks the social skills appropriate for this new position [syn: {nouveau-riche}, {parvenu}, {parvenue}, {upstart(a)}] n 1: 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}, {arriviste}]