sleepless

[ sleep-lis ]
/ ˈslip lɪs /

adjective

without sleep: a sleepless night.
watchful; alert: sleepless devotion to duty.
always active: the sleepless ocean.

QUIZZES

GEE WHILLIKERS! WAIT TILL YOU SEE THIS WORD OF THE DAY QUIZ!

Do you remember all the words from last week, September 21–27, 2020? Then this quiz should be butyraceous.
Question 1 of 7
What does “yare” mean?

Origin of sleepless

late Middle English word dating back to 1375–1425; see origin at sleep, -less

OTHER WORDS FROM sleepless

sleep·less·ly, adverbsleep·less·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for sleepless

British Dictionary definitions for sleepless

sleepless
/ (ˈsliːplɪs) /

adjective

without sleep or resta sleepless journey
unable to sleep
always watchful or alert
mainly poetic always active or movingthe sleepless tides

Derived forms of sleepless

sleeplessly, adverbsleeplessness, 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