Unconscious

Not conscious; having no consciousness or power of mental perception; without cerebral appreciation; hence, not knowing or regarding; ignorant; as, an unconscious man.

Not known or apprehended by consciousness; as, an unconscious cerebration.

Having no knowledge by experience; -- followed by of; as, a mule unconscious of the yoke.

that part of the mind wherein psychic activity takes place of which the person is unaware