countless

adjective

count·​less ˈkau̇nt-ləs How to pronounce countless (audio)
: 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.
Sophie Rain could use her OnlyFans haul in countless ways — from buying an Hermès bag to popping bottles at LIV. Madeleine Marr, Miami Herald, 29 Oct. 2025 Best known for their viral sound machines and alarm clocks, Hatch is constantly promoted on TikTok, just one of countless companies whose products promise to fix sleep patterns and help people wake up easier. Ct Jones, Rolling Stone, 29 Oct. 2025 There are hundreds of stories out there about Steve by bands, former coworkers, poker players, and countless others. Nina Corcoran, Pitchfork, 29 Oct. 2025 These look at what millions of users watch or listen to, then run calculations across countless machines to suggest new music or shows. Lyssanoel Frater, USA Today, 29 Oct. 2025 See All Example Sentences for countless

Word History

First Known Use

1588, in the meaning defined above

Time Traveler
The first known use of countless was in 1588

Browse Nearby Words

Cite this Entry

“Countless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/countless. Accessed 31 Oct. 2025.

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

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