psyche vs unconscious

psyche and unconscious both are nouns.

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

As nouns, unconscious is a hyponym of psyche; that is, unconscious is a word with a more specific, narrower meaning than psyche:

psyche: that which is responsible for one's thoughts, feelings, and conscious brain functions; the seat of the faculty of reason
unconscious: that part of the mind wherein psychic activity takes place of which the person is unaware

Other hyponyms of psyche include noddle, tabula rasa, ego, unconscious mind, subconscious, subconscious mind.

psyche (noun)	unconscious (noun)
that which is responsible for one's thoughts, feelings, and conscious brain functions; the seat of the faculty of reason	that part of the mind wherein psychic activity takes place of which the person is unaware
the immaterial part of a person; the actuating cause of an individual life

psyche (adjective)	unconscious (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