glassy in WordNet English dictionary

1. (used of eyes) lacking liveliness
   "empty eyes"; "a glassy stare"; "his eyes were glazed over with boredom"
   glassy  glazed 
   
2. (of ceramics) having the surface made shiny and nonporous by fusing a vitreous solution to it
   "glazed pottery"; "glassy porcelain"; "hard vitreous china used for plumbing fixtures"
   glassy  vitreous  vitrified 
   
3. resembling glass in smoothness and shininess and slickness
   "the glassy surface of the lake"; "the pavement was...glassy with water"- Willa Cather
   glassy