infinite

1 of 2

adjective

in·​fi·​nite ˈin-fə-nət 

1

: extending indefinitely : endless

infinite space

2

: immeasurably or inconceivably great or extensive : inexhaustible

infinite patience

3

: subject to no limitation or external determination

infinite possibilities

4

a

: extending beyond, lying beyond, or being greater than any preassigned finite value however large

infinite number of positive numbers

b

: extending to infinity

infinite plane surface

c

: characterized by an infinite number of elements or terms

an infinite set

an infinite series

infiniteness noun

infinite

2 of 2

noun

: something that is infinite (as in extent, duration, or number)

Synonyms of infinite

Adjective

• endless
• limitless
• boundless

Examples of infinite in a Sentence

Adjective

an infinite series of numbers

She has infinite patience when she's dealing with children.

There seemed to be an infinite number of possibilities.

an infinite variety of choices

Recent Examples on the Web

Adjective

To find the proof for zeta(3), Apéry sandwiched the function between two infinite series that converged at just the right speed to ensure zeta(3) must be irrational. — Lyndie Chiou, Scientific American, 2 Oct. 2026

As fashion cycles through infinite stages of nostalgia—particularly the brashness of the ’80s and the sleek, techy sportiness of the ’90s—there’s something about airbrushing that feels less overt and slightly irreverent. — Alexandra Hildreth, Vogue, 2 Oct. 2026

Noun

Command presence holds time itself in an infinite now while maneuvers like the kettle choreograph the movement of information and emotions within it. — Sophie Landres, Artforum, 1 Oct. 2026

That is the cleft between the subjective and the objective, the finite and the infinite, the profane and the sacred. — Steven D. Reske, Chicago Tribune, 23 Sep. 2026

Word History

Etymology

Adjective

Middle English infynyt, borrowed from Anglo-French & Latin; Anglo-French infinit, borrowed from Latin infīnītus "indefinite, having no limit, endless," from in- in- entry 1 + fīnītus "specific, definite, having bounds or limits" — more at finite

First Known Use

Adjective

14th century, in the meaning defined at sense 1

Noun

1587, in the meaning defined above

Phrases Containing infinite

• in someone's (infinite) wisdom

Kids Definition

infinite

1 of 2 adjective

in·​fi·​nite ˈin-fə-nət 

1

: being without limits of any kind : endless

infinite space

2

: seeming to be without limits : vast

infinite patience

infinite wealth

3

a

: lying or being beyond or being larger than any number no matter how large

the number of positive numbers is infinite

b

: having an infinite number of elements or terms

an infinite set

infinitely adverb

infinite

2 of 2 noun

: something that is infinite (as in number)