unable to see, move, feel etc in the normal way because you are not conscious:
She was found alive but unconscious.
knock/beat somebody unconscious
Levin was knocked unconscious by the impact.
a feeling or thought that is unconscious is one that you have without realizing it [↪ subconscious]
unconscious feeling/desire/need etc
an unconscious need to be loved
to not realize the effect of something you have said or done:
Doreen appeared to be unconscious of the amusement she had caused.
an action that is unconscious is not deliberate
—unconsciousness noun [uncountable]