How to use endless in a sentence. Infinite, limitless, vast, unlimited, boundless, immeasurable, illimitable, measureless (definition of endless from the cambridge advanced learner's dictionary & thesaurus © cambridge university press)
Having or seeming to have no end, limit, or conclusion
See examples of endless used in a sentence.
Being or seeming to be without an end or limit Formed with the ends joined Definition of endless adjective in oxford advanced learner's dictionary Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Wordreference random house learner's dictionary of american english © 2025 end•less /ˈɛndlɪs/ adj Having or seeming to have no end An endless highway through the open desert The endless noise of construction work
If you describe something as endless, you mean that it lasts so long that it seems as if it will never end.
The shell is likewise most beautiful in its endless shapes and variations Its origin and character have given rise to endless surmises The details are endless, the results delightful And yet, like an unruly child, she had rebelled, causing him endless worry and stress.
Endless (not comparable) having no end