[ oh-ver-sleep ]
See synonyms for oversleep on Thesaurus.com
verb (used without object),o·ver·slept, o·ver·sleep·ing.
  1. to sleep beyond the proper or intended time of waking: He overslept and missed his train.

verb (used with object),o·ver·slept, o·ver·sleep·ing.
  1. to sleep beyond (a certain hour): She had overslept her usual time of arising.

  2. to let (oneself) sleep past the hour of arising: Of all mornings to oversleep myself!

Origin of oversleep

Middle English word dating back to 1350–1400; see origin at over-, sleep

Words Nearby oversleep

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use oversleep in a sentence

British Dictionary definitions for oversleep


/ (ˌəʊvəˈsliːp) /

verb-sleeps, -sleeping or -slept
  1. (intr) to sleep beyond the intended time for getting up

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