zombielike
/ˌzɒmbiˈlaɪk/Definitions
1. adjective
resembling a zombie, especially in a state of being apathetic or lacking vitality
“After months of struggling with a grueling job, she became zombielike, barely able to muster up the energy to go to work.”
2. noun
a person who behaves in a zombielike manner, often due to exhaustion or boredom
“The zombie-like students trudged through the school hallways, their eyes glazed over from lack of sleep.”