Meaning of “unconscious” - Learner’s Dictionary

unconscious

adjective uk us /ʌnˈkɒnʃəs/
SICK/INJURED

B2 in a state as though you are sleeping, for example because you have been hit on the head:

She was knocked unconscious.
FEELING

An unconscious thought or feeling is one that you do not know you have:

an unconscious fear
unconsciousness noun [ U ]

(Definition of “unconscious adjective” from the Cambridge Learner’s Dictionary © Cambridge University Press)