Origin of infinite

1350–1400; Middle English < Latin infīnītus boundless. See in-3, finite
Related formsin·fi·nite·ly, adverbin·fi·nite·ness, nounnon·in·fi·nite, adjective, nounnon·in·fi·nite·ly, adverbnon·in·fi·nite·ness, nounqua·si-in·fi·nite, adjectivequa·si-in·fi·nite·ly, adverbsu·per·in·fi·nite, adjectivesu·per·in·fi·nite·ly, adverbsu·per·in·fi·nite·ness, nounun·in·fi·nite, adjectiveun·in·fi·nite·ly, adverbun·in·fi·nite·ness, noun

Synonyms for infinite

Antonyms for infinite Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for infinitely

unbelievably, very

Examples from the Web for infinitely

Contemporary Examples of infinitely

Historical Examples of infinitely

  • Hope is infinitely better than you are, and I believe she is more capable of loving.


    Thomas Wentworth Higginson

  • War is infinitely more costly than the costliest preparedness.

  • How mysterious, how infinitely tender it sounded in that awful blackness!

    Green Mansions

    W. H. Hudson

  • It would be infinitely safer for you to follow carefully what I am saying.

    The Secret Agent

    Joseph Conrad

  • For them her breast was soft and warm and infinitely tender.

    Johnny Bear

    E. T. Seton

British Dictionary definitions for infinitely



  1. having no limits or boundaries in time, space, extent, or magnitude
  2. (as noun; preceded by the)the infinite
extremely or immeasurably great or numerousinfinite wealth
all-embracing, absolute, or totalGod's infinite wisdom
  1. having an unlimited number of digits, factors, terms, members, etcan infinite series
  2. (of a set) able to be put in a one-to-one correspondence with part of itself
  3. (of an integral) having infinity as one or both limits of integrationCompare finite (def. 2)
Derived Formsinfinitely, adverbinfiniteness, 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

Word Origin and History for infinitely

early 15c., from infinite + -ly (2).



late 14c., "eternal, limitless," also "extremely great in number," from Old French infinit "endless, boundless," and directly from Latin infinitus "unbounded, unlimited," from in- "not, opposite of" (see in- (1)) + finitus "defining, definite," from finis "end" (see finish). The noun meaning "that which is infinite" is from 1580s.

Online Etymology Dictionary, © 2010 Douglas Harper

infinitely in Science



Relating to a set that can be put into a one-to-one correspondence with some proper subset of its own members.
Relating to or being a numerical quantity describing the size of such a set.
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.