catatonic
[ kat-uh-ton-ik ]
/ ˌkæt əˈtɒn ɪk /
adjective
having catatonia, a syndrome characterized by muscular rigidity and mental stupor: The schizophrenic remained in a catatonic state.
appearing to be in a daze or stupor; unresponsive: She had the catatonic expression of an avant-garde model.
noun
a person who suffers from catatonia.