Antonyms of noun consciousness

1 of 2 senses of consciousness

Sense 1
consciousness -- (an alert cognitive state in which you are aware of yourself and your situation; "he lost consciousness")
       Antonym of unconsciousness (Sense 1)
      => unconsciousness -- (a state lacking normal awareness of the self or environment)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun consciousness

2 senses of consciousness

Sense 1
consciousness -- (an alert cognitive state in which you are aware of yourself and your situation; "he lost consciousness")
       => cognitive state, state of mind -- (the state of a person's cognitive processes)

Sense 2
awareness, consciousness, cognizance, cognisance, knowingness -- (having knowledge of; "he had no awareness of his mistakes"; "his sudden consciousness of the problem he faced"; "their intelligence and general knowingness was impressive")
       => knowing -- (a clear and certain mental apprehension)