(someone) is out cold

Translations
(кто-то) без сознания
He was out cold after being hit by the ball.
Он был без сознания после удара мячом.
Definitions
The phrase '(someone) is out cold' means that a person is completely unconscious, usually as a result of being hit, fainting, or falling asleep very deeply. It implies that the person is unresponsive and unaware of their surroundings.
Words
out

adverb
наружу