countless

adjective

count·​less ˈkau̇nt-ləs How to pronounce countless (audio)
Synonyms of countlessnext
: too numerous to be counted : myriad, many
countlessly adverb

Examples of countless in a Sentence

There are countless reasons why that would not be a good idea. I've been there countless times.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The book cracked open a world of storytelling for countless students, readers, and writers ,like me. Literary Hub, 16 Jan. 2026 Once home to countless cultural celebrations, the park embodies Widman’s legacy of arts, equity and community pride. Carlos Rico, San Diego Union-Tribune, 15 Jan. 2026 The Blind Owl has been subject to countless studies, interpretations, rewritings, and controversies. Amir Ahmadi Arian, The Dial, 15 Jan. 2026 The mesh version has already hit the streets countless of times thanks to its early famous adopters. Karla Rodriguez, Footwear News, 15 Jan. 2026 See All Example Sentences for countless

Word History

First Known Use

1593, in the meaning defined above

Time Traveler
The first known use of countless was in 1593

Browse Nearby Words

Cite this Entry

“Countless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/countless. Accessed 17 Jan. 2026.

Kids Definition

countless

adjective
count·​less ˈkau̇nt-ləs How to pronounce countless (audio)
: too numerous to be counted : innumerable

More from Merriam-Webster on countless

Last Updated: - Updated example sentences
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