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.
And while gambling companies and integrity-monitoring firms can flag suspicious activity, there are countless ways around safeguards — offshore sportsbooks, third-party accounts or unregulated betting platforms. Trey Wallace Outkick, FOXNews.com, 19 May 2026 Thank you for the countless pleasures of working with you. Anthony D'alessandro, Deadline, 19 May 2026 And the countless spikes of purple-blue flowers are alive with pollinators. Kim Toscano, Southern Living, 19 May 2026 At the same time, its poison has claimed countless lives throughout history. Nick Vivarelli, Variety, 17 May 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

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Cite this Entry

“Countless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/countless. Accessed 20 May. 2026.

Kids Definition

countless

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

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