Pronunciation: ( —n., adj.up'stärt"; —v.up-stärt'),[key] —n. 1. a person who has risen suddenly from a humble position to wealth, power, or a position of consequence.
2. a presumptuous and objectionable person who has so risen; parvenu.
—adj. being, resembling, or characteristic of an upstart.
—v.i. 1. to spring into existence or into view.
2. to start up; spring up, as to one's feet.