rapacious adj. + Add to list US //ɹəˈpæʃɪs// UK //ɹæpˈeɪʃəs// ra·pa·cious SynonymsEtymology Synonyms edaciousesurientpredatoryraptorialraveningravenousvoraciousvulturinevulturouswolfishOriginLATrapāx→ENrapacious Perhaps from rapacity + -ous, in any case ultimately from Latin rapāx (“grasping, greedy”).