Thesaurus

sleepless

adjective

Synonyms & Antonyms of sleepless

not sleeping or able to sleep
  • lay sleepless with worry

Synonyms for sleepless

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Antonyms for sleepless

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Time Traveler for sleepless

Time Traveler

The first known use of sleepless was in the 15th century

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Cite this Entry

“Sleepless.” The Merriam-Webster.com Thesaurus, Merriam-Webster Inc., https://www.merriam-webster.com/thesaurus/sleepless. Accessed 5 December 2019.

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More from Merriam-Webster on sleepless

Dictionary: Definition of sleepless

Medical Dictionary: Definition of sleepless

Spanish Central: Translation of sleepless

Nglish: Translation of sleepless for Spanish Speakers

Britannica English: Translation of sleepless for Arabic Speakers

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