sleepless
Americanadjective
-
without sleep.
a sleepless night.
-
watchful; alert.
sleepless devotion to duty.
-
always active.
the sleepless ocean.
adjective
-
without sleep or rest
a sleepless journey
-
unable to sleep
-
always watchful or alert
-
poetic always active or moving
the sleepless tides
Other Word Forms
- sleeplessly adverb
- sleeplessness noun
Etymology
Origin of sleepless
late Middle English word dating back to 1375–1425; sleep, -less
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.
Lee's brother Jamie said he felt shock and disbelief and suffered sleepless nights because of what happened to his mother.
From BBC
She believes their problems conceiving naturally were caused, or at least exacerbated, by the war: "all the stress and sleepless nights," Katerina says.
From BBC
They simply show that a disciplined, diversified approach offers something rare in investing: higher odds of success with fewer sleepless nights.
From MarketWatch
But it is the opposite scenario—losing the AI race—that is giving them more sleepless nights these days.
But, at the same time, they’re looking at enough of a payoff to risk a few sleepless nights.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
