unconscious vs nonvoluntary

unconscious is a noun but nonvoluntary is not a noun.

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

unconscious (noun)	nonvoluntary (noun)
that part of the mind wherein psychic activity takes place of which the person is unaware

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