WordNet sense 1 (living by preying on other animals especially by catching living prey):

predatory, rapacious, vulturous, raptorial, vulturine

WordNet sense 2 (excessively greedy and grasping):

voracious

WordNet sense 3 (eager to acquire and possess things especially material possessions or ideas):

acquisitive

WordNet sense 4 (having or showing determination and energetic pursuit of your ends):

aggressive

WordNet sense 5 (devouring or craving food in great quantities):

edacious, esurient, ravenous, wolfish

WordNet sense 6 (given to excess in consumption of especially food or drink):

gluttonous