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.

Fusion, the reaction that powers the sun, has long been considered the ultimate clean-energy prize: potentially limitless electricity without greenhouse gases or radioactive waste.

From The Wall Street Journal • Mar. 28, 2026

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

“Sometimes we operate thinking, ‘If I’m going to be there for them, that means limitless attention.’”

From MarketWatch • Mar. 19, 2026

“This strategic partnership paves the way for limitless possibilities,” Canal+ Chief Technology Officer Stéphane Baumier said.

From Barron's • Mar. 11, 2026

The overtime pay was spectacular, and the funding was limitless.

From "The Martian" by Andy Weir

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