The Collaborative International Dictionary of English v.0.48:

Gluttonous \Glut"ton*ous\, a.
   Given to gluttony; eating to excess; indulging the appetite;
   voracious; as, a gluttonous age. -- Glut"ton*ous*ly, adv.
   -- Glut"ton*ous*ness, n.
   [1913 Webster]