Out Cold

Synonyms of out cold

• unconscious
• asleep
• knocked out

Antonyms of out cold

• conscious
• alert
• awake

Collocations of out cold

knocked out

Frequency: 70 %

After being hit in the head, he was knocked out cold.

fast asleep

Frequency: 60 %

She was fast asleep, completely out cold.

sound asleep

Frequency: 50 %

The baby was sound asleep, out cold in his crib.

deep sleep

Frequency: 45 %

She fell into a deep sleep and was out cold for hours.

completely unconscious

Frequency: 40 %

The patient was completely unconscious, out cold after the surgery.

Idiomatic Expressions for out cold

• Phrase: sleeping out cold
  Meaning: to be in a deep and undisturbed sleep
  Usage: After a long day at work, she was sleeping out cold within minutes of hitting the bed.