WordNet sense 1 (extremely hungry):

esurient, famished, sharp-set, starved

WordNet sense 2 (feeling hunger; feeling a need or desire to eat food):

hungry

WordNet sense 3 (devouring or craving food in great quantities):

edacious, rapacious, ravening, voracious, wolfish

WordNet sense 4 (given to excess in consumption of especially food or drink):

gluttonous