limitless

American  

[lim-it-lis] / ˈlɪm ɪt lɪs /

adjective

1. without limit; boundless.

   limitless ambition; limitless space.

   Synonyms:

   countless, unending, measureless, unbounded

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Other Word Forms

• limitlessly adverb
• limitlessness noun

Etymology

Origin of limitless

First recorded in 1575–85; limit + -less

Explanation

When something is limitless, there's an unending amount or supply of it. If you truly believe there are limitless possibilities in life, you see no limit to what people can achieve. If the investor funding your business idea says she has limitless financial resources, that means the money will never run out. And if your friend promises limitless supplies of ice cream at her party, she's confident she won't run out. The ocean appears limitless — boundless in size — when you gaze at the horizon, and you may feel limitless amounts of love for the special people in your life. Limitless things have no limit, a word based in the Latin limitem, "boundary."

Example Sentences

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

"I'm thrilled to show the world what a new Venezuela will achieve by unleashing our limitless energy potential," Machado posted about CERAWeek on X.

From Barron's • Mar. 23, 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

She doesn’t have one of those limitless voices like Nick or Taylor, but she can carry a tune, and she’s funny.

From "Leah on the Offbeat" by Becky Albertalli

Related Words

• bottomless
• boundless
• endless
• immeasurable
• immense
• incomprehensible
• inexhaustible
• unending
• unfathomable
• unlimited
• vast