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See more synonyms for countless on Thesaurus.com
  1. too numerous to count; innumerable: the countless stars.
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Origin of countless

First recorded in 1580–90; count1 + -less
Related formscount·less·ly, adverb


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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

uncounted, myriad, untold, endless, heap, immeasurable, incalculable, infinite, legion, limitless, many, mess, mint, multitudinous, numberless, oodles, peck, pile, raft, scads

Examples from the Web for countless

Contemporary Examples

Historical Examples

  • But for her consolation were the matters of food and dress, and of countless junketings.

    Within the Law

    Marvin Dana

  • She hailed the happy thought and invested in countless yards of gauze.

  • Notwithstanding the opinions of countless flies, it was not an attractive place.

    Johnny Bear

    E. T. Seton

  • His works, countless in number, are the record of his knowledge.

  • His "countless myriads of living units" are all well enough in their way.

British Dictionary definitions for countless


  1. innumerable; myriad
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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

Word Origin and History for countless


"numberless, uncountable," 1580s, from count (v.) + -less.

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Online Etymology Dictionary, © 2010 Douglas Harper