unconscious

adj. not conscious, senseless; unaware, unknowing; not directed by conscious thought, automatic, involuntary, instinctive

n. all the psychic material that is not available in the immediate field of awareness

Unconscious can mean:not consciousunconsciousness: the loss of consciousness or lack of consciousness, not to be confused with altered states of consciousness.Unconscious mind, the mind operating well below the perception of the conscious mind as defined by Sigmund Freud and others.
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Unconscious /un·con·scious/ 1. insensible; incapable of responding to sensory stimuli and of having subjective experiences. 2. [more]Unconscious - Community and Resources

Noun
1. that part of the mind wherein psychic activity takes place of which the person is unaware
(synonym) unconscious mind
(hypernym) mind, head, brain, psyche, nous
(part-meronym) superego
Adjective
1. not conscious; lacking awareness and the capacity for sensory perception as if asleep or dead; "lay unconscious on the floor"
(antonym) conscious
(similar) cold
(see-also) asleep(p)
2. without conscious volition
(similar) involuntary, nonvoluntary, unvoluntary
3. (followed by `of') not knowing or perceiving; "happily unconscious of the new calamity at home"- Charles Dickens
(synonym) unconscious(p)
(similar) unaware

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

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

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