Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

sleepless

 
 
/ˈsliːpləs/ adjective

Translation

sleepless night a night when you are not able to sleep
uykusuz geçen gece
He'd spent a sleepless night worrying about his exam.565
sleeplessness noun [U]
uykusuzluk
(Definition of sleepless adjective from the Cambridge Learner's Dictionary English-Turkish © Cambridge University Press)

“sleepless” in other dictionaries

Word of the Day

come rain or shine

whatever happens

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More