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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

By 2010, nearly every college and applicant had gone online, with its innumerable conveniences: no issue making corrections, no hassle feeding pages into a typewriter, no trips to the post office.

From The Wall Street Journal • Jan. 16, 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

Instead, they identified immense, separate rings formed from innumerable nested arcs.

From Science Daily • Nov. 10, 2025

Also, there are gun rooms and trophy rooms, a billiard room and a smoking room, two libraries, innumerable retiring and drawing rooms, etc.

From "Code Name Verity" by Elizabeth Wein