"unconscious" in the noun sense
1. unconscious mind, unconscious
that part of the mind wherein psychic activity takes place of which the person is unaware
"unconscious" in the adjective sense
1. unconscious
not conscious lacking awareness and the capacity for sensory perception as if asleep or dead
"lay unconscious on the floor"
2. unconscious
without conscious volition
3. unconscious
followed by `of') not knowing or perceiving
"happily unconscious of the new calamity at home"- Charles Dickens
Source: WordNet® (An amazing lexical database of English)
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