ar·ri·viste noun alsoar·ri·vist\|a(ˌ)rē|vēst, -vist\ (-s) Etymology: French arriviste, from arriver + -iste -ist : one who employs any means however questionable or unscrupulous to achieve success : an aggressive pushing person : parvenu, upstart < an impoverished family of high breeding and training sneers self-consolingly at vulgar arrivistes — John Hersey >