infinite
Americanadjective
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immeasurably great.
an infinite capacity for forgiveness.
- Synonyms:
- tremendous, immense, enormous
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indefinitely or exceedingly great.
infinite sums of money.
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unlimited or unmeasurable in extent of space, duration of time, etc..
the infinite nature of outer space.
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unbounded or unlimited; boundless; endless.
God's infinite mercy.
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Mathematics.
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not finite.
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(of a set) having elements that can be put into one-to-one correspondence with a subset that is not the given set.
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noun
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something that is infinite.
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Mathematics. an infinite quantity or magnitude.
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the boundless regions of space.
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the Infinite (Being), God.
adjective
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having no limits or boundaries in time, space, extent, or magnitude
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( as noun; preceded by the )
the infinite
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extremely or immeasurably great or numerous
infinite wealth
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all-embracing, absolute, or total
God's infinite wisdom
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maths
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having an unlimited number of digits, factors, terms, members, etc
an infinite series
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(of a set) able to be put in a one-to-one correspondence with part of itself
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(of an integral) having infinity as one or both limits of integration Compare finite
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Relating to a set that can be put into a one-to-one correspondence with some proper subset of its own members.
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Relating to or being a numerical quantity describing the size of such a set.
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Being without an upper or lower numerical bound.
Other Word Forms
Derived Forms
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infinitenessnoun
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noninfinitenessnoun
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superinfinitenessnoun
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uninfinitenessnoun
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noninfiniteadjective
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quasi-infiniteadjective
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superinfiniteadjective
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uninfiniteadjective
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infinitelyadverb
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noninfinitelyadverb
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quasi-infinitelyadverb
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superinfinitelyadverb
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uninfinitelyadverb
Inflected Forms
Nouns
Etymology
Origin of infinite
First recorded in 1350–1400; Middle English, from Latin infīnītus “boundless, endless”; equivalent to in- 3 + finite
Explanation
Infinite describes things that are endless, like the universe, or your uncle's corny jokes. Finite means "relating to something with an end," and when you add the prefix in-, meaning "not," you get infinite: having to do with something that never, ever ends. If someone has read every single book about pyramids, you might say he has an infinite knowledge of ancient Egyptian culture, even though that's an exaggeration. Surely he'll stop talking about them at some point...right?
Vocabulary lists containing infinite
Pi Day Vocabulary
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"The Great Gatsby," Chapter 1 Vocabulary
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The Balcony Scene from "Romeo and Juliet"
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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.
See Examples For:
At first, those ideas made black holes appear incompatible with the familiar laws of thermodynamics because they seemed to have infinite entropy and no temperature.
From Science Daily ● Jul. 13, 2026
Gourinchas said that emerging economies had shown remarkable resilience through the shocks of the last five years, mainly due to greater supply-chain integration -- but that resilience was not infinite.
From Barron's ● Jun. 26, 2026
So the funding challenge over an infinite time horizon works out at around 6% of future gross domestic product.
From MarketWatch ● Jun. 17, 2026
The government will also look at restrictions on some functionalities on social media, such as infinite scroll and curfews, for 16 and 17-year-olds.
From BBC ● Jun. 15, 2026
But now, the vast and infinite beyond seemed to embrace him.
From "The Undead Fox of Deadwood Forest" by Aubrey Hartman
I see nothing but infinites on all sides, which surround me as an atom, and as a shadow which endures only for an instant and returns no more.
From Pascal's Pensées by Pascal, Blaise
"We've had infinites already—infinites," thought Oliver, and didn't care about the ludicrous ineptness of the words.
From Young People's Pride A Novel by Benét, Stephen Vincent
It is so easy to imagine that between them, the two infinites of the cosmos propagated life.
From Fantasia of the Unconscious by Lawrence, D. H. (David Herbert)
If they hadn't had infinites already—he supposed they wouldn't want more so badly right now.
From Young People's Pride A Novel by Benét, Stephen Vincent
"You are wandering among the infinites, and I am finite."
From Democracy, an American novel by Adams, Henry
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
