endless
Americanadjective
-
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
-
made continuous, as by joining the two ends of a single length.
an endless chain or belt.
adjective
-
having or seeming to have no end; eternal or infinite
-
continuing too long or continually recurring
-
formed with the ends joined
an endless belt
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."
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.
Endless lines at the pump have also led many to sleep in the vehicles to not lose their place.
From Barron's • Jun. 7, 2026
Caroline Mason is a writer in New York whose debut novel “An Endless Cycle of Evenings” from Hyperion Avenue is slated for 2027; she runs the Instagram account @literarycrushes.
From Los Angeles Times • May 27, 2026
"Endless gratitude to the Secret Service for their immediate, heroic response. Political violence has to stop."
From Barron's • May 23, 2026
Comedian Ali Macofsky, for example, says with a smile, “I go in person to this womb witch,” on “The Endless Honeymoon” podcast.
From Los Angeles Times • Apr. 22, 2026
Endless night was spread over its melancholy people.
From "Mythology: Timeless Tales of Gods and Heroes" by Edith Hamilton
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
