rapacious, ravening, voracious -- (excessively greedy and grasping; "a rapacious divorcee on the prowl"; "ravening creditors"; "paying taxes to voracious governments")
edacious, esurient, rapacious, ravening, ravenous, voracious, wolfish -- (devouring or craving food in great quantities; "edacious vultures"; "a rapacious appetite"; "ravenous as wolves"; "voracious sharks")