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View synonyms for

sleepless

[sleep-lis]

adjective

  1. without sleep.

    a sleepless night.

  2. watchful; alert.

    sleepless devotion to duty.

  3. always active.

    the sleepless ocean.



sleepless

/ ˈːɪ /

adjective

  1. without sleep or rest

    a sleepless journey

  2. unable to sleep

  3. always watchful or alert

  4. poeticalways active or moving

    the sleepless tides

“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
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Other Word Forms

  • sleeplessly adverb
  • sleeplessness noun
  • ˈ adverb
  • ˈԱ noun
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Word History and Origins

Origin of sleepless1

late Middle English word dating back to 1375–1425; sleep, -less
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Example Sentences

Examples have not been reviewed.

Elsewhere, world number one Jannik Sinner said he had "a few sleepless nights" after losing to Carlos Alcaraz in the French Open final.

From

His Chinese mother had received the immigration notice in April, and after many sleepless nights, she decided to take a month off from her cleaning job to obtain the certificate.

From

She has sleepless nights, a tight chest and feels emotionally disconnected.

From

"We dream of the war being over, or at least a temporary ceasefire, because my children are exhausted. The nerves, the medications, the sleepless nights. It's too much."

From

As the skies unleashed six months of rain in February over North Queensland, Australia, many locals endured sleepless nights, unsure what level of flooding and damage they would wake up to.

From

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