1. the quality or state of being smooth, shiny, and transparent or translucent like glass
2. a fixed, vacant, or expressionless quality in the eyes or gaze

Examples

• The glassiness of the polished marble floor made it slippery.
• After the long flight, a glassiness came over her eyes as she stared ahead without focus.
• The glassiness of the lake's surface reflected the mountains perfectly.
• His glassiness of expression suggested he wasn't really listening to the conversation.
• The glassiness of the ceramic glaze gave the pottery a professional finish.
• She noticed the glassiness in his eyes and realized he was in shock.