comatose
adj.in a deep sleep that you cannot wake up from. Doctors use this to describe someone who is unconscious and does not respond to anything.
adj.in a state of deep unconsciousness from which a person cannot be roused. Often used in medical contexts to describe a patient's level of consciousness.
“The patient remained comatose for several weeks after the accident.”
“After the severe head injury, the athlete was comatose for three days while the medical team monitored his brain activity.”
“The patient's family gathered in the waiting room as the neurologist explained that the patient was comatose but showing signs of brainstem activity that suggested a potential for recovery.”
“Beyond it is a single occupancy room that contains the comatose body of a man who has, in one state or other, been at New Hyde even longer than Dorry.”
“The Puerto Rican was one of the sport’s rising stars when he was left comatose for 221 days following a fight with United States boxer Terrel Williams in 2015.”
* perhaps from French comateux * From Ancient Greek κῶμα (kôma, “deep sleep”) (genitive κώματος (kṓmatos)). Equivalent to coma + -ose (“full of”)
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.