| Noun | 1. | unconscious mind - that part of the mind wherein psychic activity takes place of which the person is unawaremind, psyche, nous, brain, head - that which is responsible for one's thoughts and feelings; the seat of the faculty of reason; "his mind wandered"; "I couldn't get his words out of my head" superego - (psychoanalysis) that part of the unconscious mind that acts as a conscience id - (psychoanalysis) primitive instincts and energies underlying all psychic activity | |