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Synonyms

innumerable

American  
[ih-noo-mer-uh-buhl, ih-nyoo-] / ɪˈnu mər ə bəl, ɪˈnyu- /
Also innumerous

adjective

  1. very numerous.

  2. incapable of being counted; countless.

    Synonyms:
    numberless

innumerable British  
/ ɪˈnjuːmrəbəl, ɪˈnjuːmərəbəl /

adjective

  1. so many as to be uncountable; extremely numerous

"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

Related Words

See many.

Other Word Forms

  • innumerability noun
  • innumerabilness noun
  • innumerably adverb
  • quasi-innumerable adjective
  • quasi-innumerably adverb

Etymology

Origin of innumerable

1300–50; Middle English, from Latin innumerābilis “countless, innumerable,” equivalent to in- in- 3 + numerābilis “that can be counted or numbered” ( numerā(re) “to count” + -bilis -ble )

Explanation

Something innumerable can't be counted — there are just too many, like the stars in the sky. Innumerable things are infinite. Things that are countless, multitudinous, myriad, numberless, uncounted, or unnumerable are also called innumerable: you couldn't count them if you tried. There are a lot of countries in the world, but they aren't innumerable. On the other hand, the number of drops in the ocean is definitely innumerable. And if you wanted to be really nice, you'd say "Her charms are innumerable!" Even though you could probably count all of her good qualities.

Keep Reading on Vocabulary.com

Vocabulary lists containing innumerable

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.

There are innumerable challenges with human space travel, but one huge one that we have no good solutions for is that space is really, really bad for your health.

From Slate • Mar. 1, 2026

But what could this little-seen, made-for-television VH1 movie do for me that “The Muppet Christmas Carol,” “Scrooged” and the innumerable animated “Christmas Carol” specials from the “Flintstones” to “Alvin and the Chipmunks” hadn’t already?

From Salon • Dec. 24, 2025

Norman Podhoretz was the author of a dozen or so books and innumerable reviews and essays, all written in clear, unpretentious prose.

From The Wall Street Journal • Dec. 17, 2025

I could feel their disgust and their self-righteous cancellation in every one of the innumerable wounds I already had.

From Los Angeles Times • Nov. 17, 2025

I remembered with an ache certain dishes in France and Italy touched by innumerable human hands.

From "Travels with Charley in Search of America" by John Steinbeck