Synonyms

limitless

American

[lim-it-lis] / ˈlɪm ɪt lɪs /

adjective

without limit; boundless.

limitless ambition; limitless space.

Synonyms:

countless, unending, measureless, unbounded

Other Word Forms

limitlessly adverb
limitlessness noun

Etymology

Origin of limitless

First recorded in 1575–85; limit + -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.

The seemingly limitless proliferation of cases in which lawyers have been caught letting fictitious AI-generated legal citations contaminate their briefs continues to amaze.

From Los Angeles Times • Mar. 27, 2026

There are only so many air-defense interceptors available to knock down an almost limitless number of drones.

From The Wall Street Journal • Mar. 3, 2026

However, there are signs the era of limitless spending might be over.

From BBC • Feb. 2, 2026

The seemingly limitless power of the steam engine helped change that view, making fortunes in mining, metallurgy, brewing, and, especially, textiles.

From Barron's • Jan. 13, 2026

It reminded him of reaching port after a long trip at sea; the temptation was to leap from the ship and dance and run on the solid and limitless earth.

From "Zeitoun" by Dave Eggers

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023