automatic pilot,
autopilot a cognitive state in which you act without self-awareness; "she went about her chores on automatic pilot"; "too much of the writing seems to have been done on automatic pilot"; "she talked and he dozed and my mind went on autopilot"
semiconsciousness,
stupor,
grogginess,
stupefaction marginal consciousness; "his grogginess was caused as much by exhaustion as by the blows"; "someone stole his wallet while he was in a drunken stupor"
comatoseness,
coma a state of deep and often prolonged unconsciousness; usually the result of disease or injury
electrosleep unconsciousness brought about by the passage of a low voltage electric current through the brain
semicoma a mild comatose state; a coma from which the person can be roused by appropriate stimuli
Unconsciousness, more appropriately referred to as loss of consciousness or lack of consciousness, is a dramatic alteration of mental state that involves complete or near-complete lack of responsiveness to people and other environmental stimuli. Being in a comatose state or coma is an illustration of unconsciousness. Fainting due to a drop in blood pressure and a decrease of the oxygen supply to the brain is an illustration of a temporary loss of consciousness.
