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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.

"Jenny touched countless lives throughout her career, always greeting everyone with a warm smile that could light up any room."

From BBC

This camp, and countless others dotting the country, house millions of Syrians whose homes still lie in utter ruin.

From BBC

First responders have spent countless billions more signing up for an AT&T subscription branded “FirstNet” but running over the same failure-prone commercial network as everyone else.

From The Wall Street Journal

As he has shown countless times in his illustrious career, the veteran continued to believe he could defy the odds and turn the match around.

From BBC

Across the face of the house are countless windows in white wooden frames.

From Literature

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.