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:
Over 10 crisp songs, Lacy asks if love is possible when your options are infinite.
From Los Angeles Times ● Jul. 22, 2026
Features the government considers addictive such as auto-play videos and infinite scrolling will also be disabled under the plans, aimed at improving teenagers' focus, sleep quality and family life.
From BBC ● Jul. 15, 2026
The government also announced plans for a default setting that will disable addictive features like infinite scrolling for older teenagers.
From Barron's ● Jul. 14, 2026
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
Not only does Achilles take an infinite number of steps to run a finite distance, but he takes only 2 seconds to do it.
From "Zero: The Biography of a Dangerous Idea" by Charles Seife
SOCRATES: That pleasure and pain both admit of more and less, and that they are of the class of infinites.
From Philebus by Jowett, Benjamin
God, say the believers, can be conceived only as infinitely good, infinitely wise, infinitely powerful, etc.,—the whole litany of the infinites.
From System of Economical Contradictions; or, the Philosophy of Misery by Proudhon, P.-J. (Pierre-Joseph)
Moreover, were there not a minimum, The smallest bodies would have infinites, Since then a half-of-half could still be halved, With limitless division less and less.
From On the Nature of Things by Leonard, William Ellery
I plainly did confesse awhile agone That be it what it will that’s infinite More infinites will follow thereupon, But that all infinites do justly fit And equall be, my reason did not yet admit.
From Democritus Platonissans by More, Henry
True, mathematical infinites are in some respects different from metaphysical infinites; but it is the former that belong to this argument, since the supposed infinite succession of organic beings forms a mathematical series.
From The Religion of Geology and Its Connected Sciences by Hitchcock, Edward
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.
