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Synonyms

asleep

American  
[uh-sleep] / əˈslip /

adverb

  1. in or into a state of sleep.

    He fell asleep quickly.

  2. into a dormant or inactive state; to rest.

    Their anxieties were put asleep.

  3. into the state of death.


adjective

  1. sleeping.

    He is asleep.

  2. dormant; inactive.

  3. (of the foot, hand, leg, etc.) numb.

  4. dead.

asleep British  
/ əˈsliːp /

adjective

  1. in or into a state of sleep

  2. in or into a dormant or inactive state

  3. (of limbs, esp when the blood supply to them has been restricted) numb; lacking sensation

  4. euphemistic dead

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

asleep Idioms  

    More idioms and phrases containing asleep


Other Word Forms

  • half-asleep adjective
  • quasi-asleep adjective

Etymology

Origin of asleep

before 1000; Middle English o slæpe, aslepe, Old English on slǣpe; a- 1, sleep

Explanation

If you're asleep, you're not awake and reading this. A baby might find it hard to fall asleep without being held and rocked. Some people snore when they're asleep, and others have strange, vivid dreams. In either case, their eyes are closed and they're in a state of rest that's close to being unconscious. You can also use asleep figuratively, to mean "numb," as when your leg falls asleep, or "inattentive," as when the opposing soccer team is asleep and your team beats them easily.

Keep Reading on Vocabulary.com

Vocabulary lists containing asleep

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Chen began by massaging my scalp for about 10 minutes, as I tried not to fall asleep.

From Los Angeles Times • Apr. 6, 2026

"This study addresses a major gap by focusing on the workers who start their day when most people are still asleep."

From Science Daily • Apr. 1, 2026

Many of them were asleep after celebrating till midnight at a birthday party.

From The Wall Street Journal • Apr. 1, 2026

Eight years later he was discovered asleep in a haphazardly parked car 15 miles from his Florida home.

From BBC • Mar. 28, 2026

With some ordinary dull adult voice droning on, so the greatest danger is that I might fall asleep.

From "Found" by Margaret Peterson Haddix