endless

[end-lis]

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

/ 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

Other Word Forms

• endlessly adverb
• endlessness noun
• quasi-endless adjective
• quasi-endlessly adverb

Word History and Origins

Origin of endless¹

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

Synonym Study

See eternal.

Example Sentences

In fact, he wasn’t talking about Kirk, but about his alleged killer and how in the immediate aftermath, there was endless speculation about his political beliefs.

From Los Angeles Times

Still, that film is a fascinating indication of where anime can go, and the endless possibilities the genre has when it merges with existing markets and properties.

From Salon

"It took us 10 hours to reach Khan Younis, and we paid 3,500 shekels for the ride. The line of cars and trucks seemed endless."

From BBC

The brothers’ endless swipes at each other in the media post-breakup didn’t give fans hope they’d get back to “living forever.”

From Los Angeles Times

Many have described severe congestion, endless queues of cars and trucks, and long delays, with families stranded on the roadside while airstrikes continue overhead.

From BBC

Related Words

• boundless 
• ceaseless 
• constant 
• continual 
• continuous 
• countless 
• eternal 
• incessant 
• infinite 
• interminable 
• limitless 
• monotonous 
• never-ending 
• perpetual 
• unbroken 
• unending 
• unfathomable 
• uninterrupted 
• unlimited 
• untold