having or seeming to have no end, limit, or conclusion; boundless; infinite; interminable; incessant: an endless series of complaints; Time is endless.
2.
made continuous, as by joining the two ends of a single length: an endless chain or belt.
Origin: before 900; Middle English endelees,Old English endelēas.See end1, -less
Related forms
end·less·ly, adverb
end·less·ness, noun
qua·si-end·less, adjective
qua·si-end·less·ly, adverb
Synonyms 1. limitless, illimitable, unending, unceasing, continuous, perpetual. See eternal.