Countless and Many

Countless

Countless adjective - Too many to be counted.
Usage example: I've told you countless times not to do that

Many is a synonym for countless in limitless topic. In some cases you can use "Many" instead an adjective "Countless", when it comes to topics like innumerable.

Many

Many adjective - Being of a large but indefinite number.
Usage example: a journey of many miles begins with a single step

Countless is a synonym for many in numerous topic. You can use "Countless" instead an adjective "Many", if it concerns topics such as limitless, profuse.

Both words in one sentence

  • Many episodes later, Quinn encounters the same alternate version of himself, except his sliding experiences have turned him into a ruthless psychopath who has committed countless atrocities.
  • Foreshadowing: Firebase Zulu, a former NCR firebase now under Legion control, is discussed by many important NPCs throughout every mod, and many know that soon, a war will break out that will heavily influence the Mojave in countless ways.
  • Demon Slaying Many of the Heroes in the Dragon Quest series have slain countless demons (Big Bad, Mooks, and everything in between) in the numerous installments.
    Source: Demon Slaying
Cite this Source
Many and Countless. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/countless/many
Countless & Many. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/countless/many>.
Many or Countless. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/countless/many.
Google Ngram Viewer shows how "countless" and "many" have occurred on timeline