• synonyms


  1. of or relating to the cosmos: cosmic laws.
  2. characteristic of the cosmos or its phenomena: cosmic events.
  3. immeasurably extended in time and space; vast.
  4. forming a part of the material universe, especially outside of the earth.
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Also cos·mi·cal.

Origin of cosmic

1640–50; < Greek kosmikós worldly, universal, equivalent to kósm(os) world, arrangement + -ikos -ic
Related formscos·mi·cal·i·ty [koz-mi-kal-i-tee] /ˌkɒz mɪˈkæl ɪ ti/, nouncos·mi·cal·ly, adverbin·ter·cos·mic, adjectivenon·cos·mic, adjectivenon·cos·mi·cal·ly, adverbpre·cos·mic, adjectivepre·cos·mi·cal, adjectivepre·cos·mi·cal·ly, adverb


Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for cosmical

Historical Examples

  • The mythical or cosmical element reminds us of the Timaeus, the ideal of the Republic.



  • He could not see the source of the great roaring—the roaring of some cosmical cataract.


    James Huneker

  • It is a fundamental, a cosmical, a world-transforming change.

  • That the "cosmical" law is "the weakest must go to the wall" is generally conceded.

  • For no one denies that some benefit may result from the present cosmical structure.

    Theism or Atheism

    Chapman Cohen

British Dictionary definitions for cosmical


  1. of or relating to the whole universecosmic laws
  2. occurring or originating in outer space, esp as opposed to the vicinity of the earth, the solar system, or the local galaxycosmic rays
  3. immeasurably extended in space or time; vast
  4. rare harmonious
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Derived Formscosmically, adverb
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 cosmical



1640s, from cosmo- + -ic. Originally "of this world" (which was the sense of Greek kosmikos); meaning "of the universe" is from 1846. Cosmical is attested from 1580s.

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Online Etymology Dictionary, © 2010 Douglas Harper

cosmical in Science


  1. Relating to the universe or the objects in it.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.