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

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

Adjective

• bottomless
• boundless
• endless
• fathomless
• horizonless
• illimitable
• immeasurable
• immensurable
• indefinite
• limitless
• measureless
• unbounded
• unfathomable
• unlimited

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

Why Now Is the Best Time to Invest in Expertise We live in an era of infinite content. —Tomas Chamorro-Premuzic, Forbes.com, 17 Apr. 2025

That old episode ends with Daly's digital and real-life demise, and the USS Callister left roaming an infinite artificial universe with a bold new captain. —Jeff Spry, Space.com, 16 Apr. 2025

Noun

So because humans can’t interact with the infinite, some researchers consider undecidability to be of limited practical significance. —Charlie Wood, Wired News, 6 Apr. 2025

Thus, beat-makers are on one side of an open line to the infinite; the machines are sacred, and gathering around one can turn a small room into a shrine to the past. —Sheldon Pearce, The New Yorker, 22 Mar. 2025

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

15th century, 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)