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
According to the researchers, the effect could also become visible at larger scales, such as in emulsions, liquids in which countless tiny oil droplets are distributed in water.
—
Georgina Jedikovska, Interesting Engineering, 17 Dec. 2025
New advancements in heart valve technology promised to save countless lives, but the decade came to a close on a painful note with a horrific bus crash in 1988 that claimed the lives of 27 people.
—Ray Padilla, Louisville Courier Journal, 16 Dec. 2025
Operating in packs, Germany’s submarines successfully sank countless Allied merchant vessels, nearly crippling the supply chains that sustained the United Kingdom.
—Foreign Affairs, 16 Dec. 2025
But each of these evolving threats is a universe unto itself, with countless variables and unknowns.
—Kelso Harper, Scientific American, 16 Dec. 2025
See All Example Sentences for countless
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Georgina Jedikovska, Interesting Engineering, 17 Dec. 2025
New advancements in heart valve technology promised to save countless lives, but the decade came to a close on a painful note with a horrific bus crash in 1988 that claimed the lives of 27 people.
—Ray Padilla, Louisville Courier Journal, 16 Dec. 2025
Operating in packs, Germany’s submarines successfully sank countless Allied merchant vessels, nearly crippling the supply chains that sustained the United Kingdom.
—Foreign Affairs, 16 Dec. 2025
But each of these evolving threats is a universe unto itself, with countless variables and unknowns.
—Kelso Harper, Scientific American, 16 Dec. 2025
See All Example Sentences for countless
Cite this Entry
“Countless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/countless. Accessed 28 Dec. 2025.
Copy CitationKids Definition
countless
adjective
count·less
ˈkau̇nt-ləs 
: too numerous to be counted : innumerable
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