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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:

So he’s not only talking about the blood sport of bullfighting or the endless fallouts from the partying.

From The Wall Street Journal ● Oct. 9, 2026

That would, in theory at least, set a firm and realistic agenda, cutting the endless hours of gruelling negotiations that often dominate COP meetings before votes are taken on individual technical points.

From Barron's ● Oct. 8, 2026

You have enough to keep you going, but you don’t have endless amounts to supplement two adults who see you as the next best thing to Western Union.

From MarketWatch ● Oct. 8, 2026

But Cardinale acknowledged layoffs would be part of the cost-cuts, a prospect that frightened many in Hollywood after endless waves of job cuts at the two companies.

From Los Angeles Times ● Oct. 2, 2026

Aunt J shows us her feed, an endless stream of videos and pictures of Black protesters in action, refusing to let the hate group stall or stop the opening.

From "Split the Sky" by Marie Arnold

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