rapacious /rəˈpāSHəs/ I. adjective aggressively greedy or grasping • rapacious landlords. II. derivatives 1. rapaciously /rəˈpāSHəslē / adverb 2. rapaciousness /rəˈpāSHəsnəs / noun – origin mid 17th cent.: from Latin rapax, rapac- (from rapere ‘to snatch’) + -ious.