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sound asleep

sound asleep

19 3.2
Resting very deeply and not waking easily
  • idiom
  • /saʊnd əˈsliːp/
translation icon : dormido profundamente
  • Twenty-four hours from now, I'll be sound asleep in my own bed.
  • sound asleep in bed
  • sound asleep, snoring
  • fell sound asleep

Which is why we must be very quiet, for underneath each of these hastily fashion tents are the band members sound asleep.

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Examples

  • In a few minutes, my babies will be sound asleep in their cribs.

    Fiction book (1996)
  • Butch asked a question, only to find him sound asleep in bed.

    Fiction book (1994)
  • My husband is back there sound asleep!

  • I passed by... and I see Tony sound asleep in the car.

  • Look at them, all sound asleep.

  • I turned to see him sound asleep on my table.

    Fiction book (2000)
  • And the moment had passed, for Monica was sound asleep.

  • And the guard is sound asleep and snoring like a wild dog!

  • I know you'll be sound asleep.

  • After a long day, my husband is back there sound asleep on the couch.

Synonyms

asleep
vssound asleep
73 1.0

Become not awake

is specifically a deep peaceful sleep that resists waking
fast asleep
vssound asleep
19 2.5

Resting very deeply and not easy to wake

is calmer and emphasizes being not easily awakened
dead asleep
vssound asleep
  • Informal
2 3.5

Completely not awake and hard to wake

is more peaceful and specifically hard to awaken

Antonyms

110 3.0

Not able to relax and stay still because of worry or boredom

26 2.7

Completely alert and not at all sleepy

How Asleep

out cold
  • Informal
27 6.9
dead asleep
  • Informal
2 3.5
sound asleep
19 3.2
asleep
1.0
drowsing
4.1

Surface Forms

sound asleep positive

Morphology

sound + asleep

The phrase combines 'sound' used as an intensifying adjective meaning 'deep' or 'complete' with 'asleep', so the overall meaning 'sleeping very deeply' is compositionally derivable. However, the specific sense of 'sound' as 'deep/undisturbed' is somewhat lexicalized and may not be known to a B1 learner who only knows 'sound' as 'reliable' or 'well-founded', making the relation partially predictable but not fully transparent.

Etymology

The phrase sound asleep uses sound in an old meaning that meant 'strong' or 'whole', like a safe, solid house. So to be sound asleep means to be completely and deeply asleep ('sleeping very deeply').