WordWeb Online

1. Resembling glass in smoothness and shininess and slickness
   "the glassy surface of the lake"; "the pavement was...glassy with water"
    
2. (used of eyes) lacking liveliness
   "a glassy stare"
   - glazed
    
3. (of ceramics) having the surface made shiny and nonporous by fusing a vitreous solution to it
   "glassy porcelain"
   - vitreous, vitrified

Derived forms: glassiest, glassier

See also: empty, glass, glazed, shiny, smooth