unconscious vs unconsciousness

unconscious and unconsciousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
unconscious	Yes	Yes	No	No
unconsciousness	Yes	No	No	No

unconscious (noun)	unconsciousness (noun)
that part of the mind wherein psychic activity takes place of which the person is unaware	a state lacking normal awareness of the self or environment

unconscious (adjective)	unconsciousness (adjective)
not conscious; lacking awareness and the capacity for sensory perception as if asleep or dead
without conscious volition
(followed by `of') not knowing or perceiving