Having a fixed stare and a wide-eyed appearance, due to boredom, lack of emotion, attention or interest, etc.(adjective)
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Use "glassy-eyed" in a sentence
"So many of the kids were glassy-eyed and sad-looking."
"Most of the 5,000 or so fans who came to Harvard Stadium seemed to be the very same preteen ponytailed girls and glassy-eyed parents who had led the WUSA to its ruin."
"As we were led through the restaurant space, little more than a gussied-up lounge, I imagined the glassy-eyed diners muttering "Save yourself!" under their breath."