[ in-fuh-nit ]
See synonyms for: infiniteinfinitelyinfiniteness on

  1. immeasurably great: an infinite capacity for forgiveness.

  2. indefinitely or exceedingly great: infinite sums of money.

  1. unlimited or unmeasurable in extent of space, duration of time, etc.: the infinite nature of outer space.

  2. unbounded or unlimited; boundless; endless: God's infinite mercy.

  3. Mathematics.

    • not finite.

    • (of a set) having elements that can be put into one-to-one correspondence with a subset that is not the given set.

  1. something that is infinite.

  2. Mathematics. an infinite quantity or magnitude.

  1. the boundless regions of space.

  2. the Infinite (Being), God.

Origin of infinite

First recorded in 1350–1400; Middle English, from Latin infīnītus “boundless, endless”; equivalent to in-3 + finite

Other words for infinite

Opposites for infinite

Other words from infinite

  • in·fi·nite·ly, adverb
  • in·fi·nite·ness, noun
  • non·in·fi·nite, adjective, noun
  • non·in·fi·nite·ly, adverb
  • non·in·fi·nite·ness, noun
  • qua·si-in·fi·nite, adjective
  • qua·si-in·fi·nite·ly, adverb
  • su·per·in·fi·nite, adjective
  • su·per·in·fi·nite·ly, adverb
  • su·per·in·fi·nite·ness, noun
  • un·in·fi·nite, adjective
  • un·in·fi·nite·ly, adverb
  • un·in·fi·nite·ness, noun

Words Nearby infinite Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use infinite in a sentence

British Dictionary definitions for infinite


/ (ˈɪnfɪnɪt) /

    • having no limits or boundaries in time, space, extent, or magnitude

    • (as noun; preceded by the): the infinite

  1. extremely or immeasurably great or numerous: infinite wealth

  1. all-embracing, absolute, or total: God's infinite wisdom

  2. maths

    • having an unlimited number of digits, factors, terms, members, etc: an infinite series

    • (of a set) able to be put in a one-to-one correspondence with part of itself

    • (of an integral) having infinity as one or both limits of integration: Compare finite (def. 2)

Derived forms of infinite

  • infinitely, adverb
  • infiniteness, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for infinite


[ ĭnfə-nĭt ]

  1. Relating to a set that can be put into a one-to-one correspondence with some proper subset of its own members.

  2. Relating to or being a numerical quantity describing the size of such a set.

  1. Being without an upper or lower numerical bound.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.