Dictionary.com
Thesaurus.com
Synonyms

oversleep

American  
[oh-ver-sleep] / ˌoʊ vərˈslip /

verb (used without object)

overslept, oversleeping
  1. to sleep beyond the proper or intended time of waking.

    He overslept and missed his train.


verb (used with object)

overslept, oversleeping
  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!

oversleep British  
/ ˌəʊvəˈsliːp /

verb

  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

Etymology

Origin of oversleep

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But he overslept, missed his 6 a.m. call time, and arrived on the set more than an hour late.

From Salon

The teenager from Warrington said he had overslept after taking a morning nap, which did not impress his colleagues.

From BBC

Having been named in the squad for the Premier League match against Arsenal at Emirates Stadium on 30 August 2008, Keegan pulled Ranger aside after oversleeping.

From BBC

Say the school maintenance man oversleeps and doesn’t unlock the doors of the polling place in time for set-up.

From Salon

Another disciplinary measure saw Rashford put on the substitutes' bench for United's Premier League game at Wolves last season after oversleeping and being late for a team meeting.

From BBC