A state of being unaware of one's surroundings or unable to respond to stimuli, typically caused by injury, anesthesia, or illness.
"The patient remained in a state of unconsciousness for several hours after the accident."
The condition of being unaware of the mental processes or desires that influence one's behavior, specifically within the framework of psychoanalysis.
"The therapist explored the unconsciousness of the patient to uncover repressed childhood memories."