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 formation has been immortalized in images captured by both the Hubble Space Telescope and the James Webb Space Telescope, along with countless others. Anthony Wood, Space.com, 10 Dec. 2025 The reasons are manifold—declining consumption, oversupply, effects of climate change, and tariffs, to name a few—but in California alone, winegrowers removed 40,000 acres of grapevines in the past year and countless acres of grapes went unharvested. Mike Desimone, Robb Report, 7 Dec. 2025 Across our theme parks, resorts, and beyond, countless unique stories unfold and new memories are made every day with our guests. Breanne L. Heldman, PEOPLE, 7 Dec. 2025 Phil Upchurch, an iconic guitarist and session musician who collaborated with Donny Hathaway, Michael Jackson and countless other music legends, has died. Mitchell Peters, Billboard, 6 Dec. 2025 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 16 Dec. 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

Last Updated: - Updated example sentences
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