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Synonyms

endless

American  
[end-lis] / ˈɛnd lɪs /

adjective

  1. having or seeming to have no end, limit, or conclusion; boundless; infinite; interminable; incessant.

    an endless series of complaints; Time is endless.

    Synonyms:
    perpetual, continuous, unceasing, unending, illimitable, limitless
  2. made continuous, as by joining the two ends of a single length.

    an endless chain or belt.


endless British  
/ ˈɛndlɪs /

adjective

  1. having or seeming to have no end; eternal or infinite

  2. continuing too long or continually recurring

  3. formed with the ends joined

    an endless belt

"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

Synonym Usage

See eternal.

Other Word Forms

Etymology

Origin of endless

First recorded before 900; Middle English endelees, Old English endelēas. See end 1, -less

Explanation

Things that are endless go on forever, or at least appear to. The ocean looks endless when you sail out of sight of the shore. Endless things are infinite — your love for someone might be endless, and the mathematical symbol of infinity represents an endless number. You're most likely to use this adjective to describe things that only seem to last forever, like an endless meeting at work or an endless commute during rush hour. The Old English root of endless is endeleas, "boundless or eternal."

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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:

Brussels has called out risks for children linked to Facebook and Instagram features including endless scroll, highly personalised feeds and the automatic playback of videos.

From Barron's Aug. 27, 2026

Her Infinity Mirror Rooms, first exhibited in New York, create mind-bending illusions of endless space through reflection and light.

From The Wall Street Journal Aug. 27, 2026

And with that veil ripped off, every emotion they didn’t let themselves feel, every word left unsaid, every last regret, all become instantly magnified, sprawling out before them on an endless road.

From Salon Aug. 24, 2026

While Andrew Friedman supplies the talent and Kasten works the business, none of it is possible without the seemingly endless flood of money approved by Walter.

From Los Angeles Times Aug. 24, 2026

It’s like a never-ending sunset, casting an endless afterglow on the land below.

From "Kwame Crashes the Underworld" by Craig Kofi Farmer

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