Glassy

Part of speech: adjective (a.)

1. Made of glass; vitreous; as, a glassy substance. Bacon.

2. Resembling glass in its properties, as in smoothness, brittleness, or transparency; as, a glassy stream; a glassy surface; the glassy deep.

3. Dull; wanting life or fire; lackluster; -- said of the eyes. "In his glassy eye." Byron. Glassy feldspar (Min.), a variety of orthoclase; sanidine.