Consciousness is regarded to comprise qualities such as subjectivity, self-awareness, sentience, sapience, and the ability to perceive the relationship between oneself and one's environment. It is a subject of much research in philosophy of mind,...

Carl Jung's concept of collective unconscious

Subconscious mind

Unconscious communication

unconsciousness: the loss of consciousness or lack of consciousness, not to be confused with altered states of consciousness.

Unconscious mind, the mind operating well below the perception of the conscious mind as defined by Sigmund Freud and others.