gluttonousEnglishOxford English Thesaurusgluttonous adjective greedy, gourmandizing, voracious, insatiable, wolfish; informal piggish, piggy, hoggish, gannet-like, with eyes bigger than one's stomach; rare edacious, esurient, gourmand, ventripotent. ▷antonyms moderate, abstemious.gluttonous Oxford Dictionary of English