countless
Americanadjective
adjective
Other Word Forms
Etymology
Origin of countless
Explanation
Countless means more than you could possibly count. If you have countless reasons why you love living in New York, there are so many reasons that you can't list them all. Countless is a good adjective to use when you want to emphasize how endless, huge, or immeasurable something is. Your could say that smoke detectors save countless lives each year, or that your principal has tried countless times to ban soda at school, only to be outvoted by the student council over and over. The word dates from the 16th century, from the verb count, with its Old French root, conter, "add up."
Vocabulary lists containing countless
Much Ado: Synonyms for "Many"
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Talk Like Shakespeare Day, List 6
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"Dogs at Work"
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
So what are the odds that I literally have countless works right now in my store of examples of people who fought against fascism?
From Salon ● Jul. 20, 2026
There are countless tales of prolific academy strikers who never make the top level in senior football.
From BBC ● Jul. 18, 2026
It helps determine when to be diplomatic, when to joke, and how to interpret countless social cues.
From Science Daily ● Jul. 14, 2026
It works splendidly for countless reasons, not the least of which is Neill’s presence as the charming suitor of Davis’ headstrong heroine.
From Los Angeles Times ● Jul. 13, 2026
Penelope followed her parents through countless twists and turns.
From "The Long-Lost Home" by Maryrose Wood
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
