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Synonyms

countless

American  
[kount-lis] / ˈkaʊnt lɪs /

adjective

  1. too numerous to count; innumerable.

    the countless stars.

    Synonyms:
    unlimited, myriad, endless, numberless

countless British  
/ ˈkaʊntlɪs /

adjective

  1. innumerable; myriad

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • countlessly adverb

Etymology

Origin of countless

First recorded in 1580–90; count 1 + -less

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.

"You start to find other things that could be destructive instead of constructive. I've seen it countless times in boxing, the likes of Tyson Fury and the rest," he says.

From BBC • Apr. 6, 2026

What’s more, there are countless small yet memorable visual and narrative details to adore — things that, at first sight, look like bizarre directorial choices, but ultimately operate in the service of this gonzo story.

From Salon • Apr. 5, 2026

After an hour on a freeway passing through suburban towns of countless rows of identical worker housing, we turned onto a more rustic road, headed into the country’s mountainous region.

From Slate • Mar. 30, 2026

I’ve heard from countless readers, especially within the past year, complaining about typos.

From The Wall Street Journal • Mar. 29, 2026

After countless miles by troika and train they were exhausted, queasy, and generally out of sorts.

From "The Long-Lost Home" by Maryrose Wood