unconscious in WordNet English dictionary

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

1. not conscious; lacking awareness and the capacity for sensory perception as if asleep or dead
   "lay unconscious on the floor"
   unconscious 
   
2. without conscious volition
   unconscious 
   
3. (followed by `of') not knowing or perceiving
   "happily unconscious of the new calamity at home"- Charles Dickens
   unconscious