1. The state of being unconscious; loss of awareness or consciousness
He fell into unconsciousness after the accident.
Ele caiu em inconsciência após o acidente.
2. Lack of awareness or knowledge about something
Her unconsciousness of the danger made the situation worse.
Sua falta de consciência do perigo piorou a situação.
3. In psychology, the part of the mind that operates without conscious awareness
Freud studied the unconsciousness of the human mind.
Freud estudou a inconsciência da mente humana.