sleepless - definition in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online (US)

Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “sleepless”

See all translations

sleepless

adjective [before noun] uk   us   /ˈsliːp.ləs/
C1 without any sleep: I've spent so many sleepless nights worrying about him. [after verb] not able to sleep: Alone and sleepless, she stared miserably up at the ceiling.
sleeplessness
noun [U] uk   us   /-nəs/
Translations of “sleepless”
in Chinese (Traditional) 失眠的,不能成眠的, 失眠的,無法入睡的…
in Chinese (Simplified) 失眠的,不能成寐的, 失眠的,无法入睡的…
(Definition of sleepless from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of sleepless?
Add Cambridge dictionaries to your browser to your website

Definitions of “sleepless” in other dictionaries

Word of the Day

selfless

caring more for what other people need and want rather than for what you yourself need and want

Word of the Day

She’s got very good posture. (How we stand and sit)

by Kate Woodford,
May 27, 2015
Recently on this blog, we looked at the words that we use to describe the way we move. This week we’re looking at words for describing our bodies when they are still, whether we are standing or sitting. Since most of us do far too much of this, let’s start with sitting.

Read More 

ebolaphobia noun

June 01, 2015
irrational fear of the (spread of) the Ebola virus Ebolaphobia Going Viral

Read More