glassy
adjective
[ ˈɡlɑːsi ]
• of or resembling glass.
• "glassy skyscrapers"
• (of a person's eyes or expression) showing no interest or animation.
• "some stare straight ahead with glassy eyes"
Similar:
expressionless,
glazed,
blank,
empty,
vacant,
fixed,
unmoving,
motionless,
emotionless,
fishy,
impassive,
lifeless,
wooden,
dull,
vacuous,
deadpan,
glassy
noun
• a glass marble.