Entry 1 sense Webster, 1913 Gluttonous /glŭt'-ən-əs/ · Glut·ton·ous · IPA /ˈɡlʌt(ə)nəs/ 01 a. Given to gluttony; eating to excess; indulging the appetite; voracious; as, a gluttonous age. 1. Given to gluttony; eating to excess; indulging the appetite; voracious; as, a gluttonous age.