Definition of unconscious noun from the Oxford Advanced American Dictionary

 

unconscious

 noun
noun
NAmE//ʌnˈkɑnʃəs//
 
the unconscious[singular](psychology)
 
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the part of a person's mind with thoughts, feelings, etc. that they are not aware of and cannot control but which can sometimes be understood by studying their behavior or dreams compare subconscious
See the Oxford Advanced Learner's Dictionary entry: unconscious