unconscious

(noun) that part of the mind wherein psychic activity takes place of which the person is unaware. Synonyms: unconscious mind.

(adj) not conscious; lacking awareness and the capacity for sensory perception as if asleep or dead. Synonyms: unconscious (vs. conscious). Example: "Lay unconscious on the floor."

(adj) without conscious volition.

(adj) (followed by `of') not knowing or perceiving. Synonyms: unconscious(predicate). Example: "Happily unconscious of the new calamity at home"- charles dickens."