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oversleep

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

verb (used without object)

  • oversleeps,
    present (3rd person singular)
  • overslept,
    past participle,  past
  • oversleeping
    present participle
  1. to sleep beyond the proper or intended time of waking.

    He overslept and missed his train.


verb (used with object)

  • oversleeps,
    present (3rd person singular)
  • overslept,
    past participle,  past
  • oversleeping
    present participle
  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

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Etymology

Origin of oversleep

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

Explanation

When you oversleep, you stay asleep longer than you meant to. If you forget to set your alarm clock, you're likely to oversleep. People oversleep all the time, and they end up being late to school, work, or appointments. No one ever intends to oversleep. If you intend to keep sleeping, you would refer to it as "sleeping in." The verb oversleep is an old one, dating from the fourteenth century, and it's related to the Old English noun oferslæp, "too much sleep."

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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.

See Examples For:

If I happen to oversleep, the music serves as my alarm clock.

From New York Times Jan. 7, 2023

Symptoms include a tendency to overeat, oversleep, lack of energy, and difficulty concentrating on tasks.

From Textbooks Jun. 9, 2022

The first time I picked him up for an early morning appointment I must have set a dozen alarms, terrified I’d oversleep.

From Washington Post Dec. 20, 2021

The average American will also oversleep and be late for work once a week, with one in six saying that number is actually higher.

From Fox News Jun. 9, 2019

“Nekwa, Papa-Nnukwu is still asleep. He will be upset that the medicines made him oversleep and he did not wake to watch the sun rise.”

From "Purple Hibiscus" by Chimamanda Ngozi Adichie

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

From Salon Sep. 15, 2024

The rat wins, while the cat oversleeps and misses the whole race.

From Los Angeles Times Jan. 18, 2023

One day the princess oversleeps and Bobo is sent on a journey to find her lost half-hour.

From New York Times Dec. 30, 2021

In the first scene of the pilot, one of the four roommates oversleeps for an arraignment.

From Slate Nov. 15, 2013

"Fits too damned well to be a coincidence! Anthony Marston dies of asphyxiation or choking last night after dinner, and Mother Rogers oversleeps herself with a vengeance."

From "And Then There Were None" by Agatha Christie

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

From BBC Feb. 6, 2025

One team member had overslept and would play from home.

From New York Times Feb. 25, 2023

"And without his friend's alarm call Cat overslept, missing his chance to sign up, which is why there's no cat in the lunar calendar."

From Salon Jan. 21, 2023

“I was a little bit late for a meeting. I slept in, overslept, but it can happen,” Rashford said.

From Seattle Times Dec. 31, 2022

He'd overslept, then forgotten to grab the stack of comics he set out for her the night before.

From "Eleanor & Park" by Rainbow Rowell

Rashford was also 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 Jan. 29, 2024

Quick had a bad habit of oversleeping and being late for minor league bus trips.

From Los Angeles Times Mar. 5, 2023

Casemiro and Luke Shaw had already netted for United before Rashford added the third on his return to the team after being dropped against Wolverhampton for oversleeping and missing a meeting.

From Seattle Times Jan. 3, 2023

Take, for instance, someone who keeps oversleeping because they hit the snooze button on their alarm nine times before finally getting up.

From The Verge Aug. 4, 2022

"I think I told her she was oversleeping," I said.

From "Miracle's Boys" by Jacqueline Woodson

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