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: unending, perpetual, continuous, unceasing, 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

Derived Forms

• ˈendlessly, adverb
• ˈendlessness, noun

Other Words From

• endless·ly adverb
• endless·ness noun
• quasi-endless adjective
• quasi-endless·ly 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

Another culprit is the endless cycle of social comparison.

From Salon

“Oh my gosh, it’s endless what you can do,” she said, her words flying like a happy burst of confetti.

From Los Angeles Times

Suddenly, there was no line between breakfast, lunch and dinner — time blurred into endless stretches punctuated by snacks.

From Salon

It's a very feasible technology for producing an endless supply of food from the deep oceans, not from the coast.

From Salon

"These components give us endless options for designing materials that balance strength and stretchability while harnessing the properties of inorganic nanoparticles based on specific requirements," Cai said.

From Science Daily

Related Words

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