glassy UK /ˈɡlɑːsi/US /ˈɡlæsi/adjective 5noun 1forms 3 adjective5 •Of or like glass, especially in being smooth and somewhat reflective. •Lacking any chop; smooth and mostly flat.It was blowing about 15 knots, which is considered fairly glassy for the west Coast. — 1966 •Dull; expressionless; lifeless.the glassy eyes of a person in a trance •Including a lot of glass. •Extensively glazed.architecture enamored of glass and steel, where glassier meant classier noun1 •A glass marble.Then suddenly she ceased to hear, having caught sight of a glassie rolled into a corner. — 1915 formsglassies · glassier · glassiest