countless

adjective

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

Synonyms of countless

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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.
Tens of thousands remain missing and countless others have lost homes, livelihoods and loved ones. — James Longman, ABC News, 3 July 2026 The script is different than the ones used in the countless school, community theater and other productions of the musical. — Tribune News Service, San Diego Union-Tribune, 3 July 2026 With key decisions still ahead, the Nashville Zoo and its supporters continue their efforts to help the clouded leopard — and countless other species — thrive. — Julianna Bragg, CNN Money, 5 July 2026 The country’s multicultural nature means people rarely have to go far to find an enlivening spot to watch Italy, Croatia, Mexico and countless other national teams. — Shelby Blackley, New York Times, 4 July 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

counting tube
countless
count noun
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Cite this Entry

“Countless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/countless. Accessed 8 Jul. 2026.

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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

Nglish: Translation of countless for Spanish Speakers

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