follow Dictionary.com

How do you spell Hannukah?

sleepless

[sleep-lis] /ˈslip lɪs/
adjective
1.
without sleep:
a sleepless night.
2.
watchful; alert:
sleepless devotion to duty.
3.
always active:
the sleepless ocean.
Origin
late Middle English
1375-1425
1375-1425; late Middle English; see sleep, -less
Related forms
sleeplessly, adverb
sleeplessness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for sleepless
  • They will spend sleepless nights marking the calves before moving the reindeer to their summer grazing grounds in the fjords.
  • If you have a sleepless night or chronic insomnia, you also tend to eat more at night.
  • The idea was cooked up during a sleepless night while contemplating his career.
  • Not that this sleepless business ends after a certain age.
  • It's an astonishing app that's great to pull out during dinner parties, beach walks or sleepless nights in bed.
  • She advises you that the whole experience has caused her many sleepless nights and lots of tears.
British Dictionary definitions for sleepless

sleepless

/ˈsliːplɪs/
adjective
1.
without sleep or rest: a sleepless journey
2.
unable to sleep
3.
always watchful or alert
4.
(mainly poetic) always active or moving: the sleepless tides
Derived Forms
sleeplessly, adverb
sleeplessness, noun
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
Cite This Source
Word Origin and History for sleepless
adj.

early 15c., from sleep (n.) + -less. Old English had slæpleas but the modern word seems to be a re-formation. Cf. German schlaflos, Dutch slapeloos. Related: Sleeplessly; sleeplessness.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Slide the arrow to see easier and harder words for sleepless
Easy Moderate Difficult

Word Value for sleepless

11
14
Scrabble Words With Friends

Quotes with sleepless