cos·​mic ˈkäz-mik How to pronounce cosmic (audio)
variants or less commonly cosmical
: of or relating to the cosmos, the extraterrestrial vastness, or the universe in contrast to the earth alone
cosmic radiation
: of, relating to, or concerned with abstract spiritual or metaphysical (see metaphysical sense 2) ideas
cosmic wisdom
: characterized by greatness especially in extent, intensity, or comprehensiveness
a cosmic thinker
a book of cosmic significance
cosmically adverb

Examples of cosmic in a Sentence

The discovery caused a cosmic shift in people's views of the world. predicted that the war would forever be regarded as a cosmic error
Recent Examples on the Web In a cosmic first, scientists have discovered water on the surface of two asteroids. Catherine Duncan, Smithsonian Magazine, 16 Feb. 2024 Finding water on dry cosmic surfaces The amount of water the team detected was roughly equivalent to that of a 12-ounce bottle of water trapped within a cubic meter of soil, Arredondo said, which is comparable SOFIA’s moon finding. Ashley Strickland, CNN, 16 Feb. 2024 The timing is cosmic as Fantastic Four will hit theaters one full decade after the release of the 2015 Fantastic Four reboot that starred Miles Teller, Michael B. Jordan, Kate Mara, and Jamie Bell. Larisha Paul, Rolling Stone, 14 Feb. 2024 Full moons boast astronomical meaning in the cosmic world. Skyler Caruso, Peoplemag, 14 Feb. 2024 That kind of promise is the stuff of cosmic lyricism, and last year, U.S. Poet Laureate Ada Limón penned some verse in honor of both the moon and the mission, writing in part: [E]ach rivulet, each pulse, each vein. TIME, 12 Feb. 2024 That nearby gas and plasma can also help reveal how feasting black holes create extreme cosmic structures such as relativistic jets — gigantic beams of superheated plasma accelerated to nearly the speed of light. Michael Greshko, Quanta Magazine, 12 Feb. 2024 Guardian of the East and the sunrise, the dragon is wise yet unpredictable, symbolizing the forces of chaos and cosmic order. Longreads, 8 Feb. 2024 Curb Your Enthusiasm often was capable of achieving an effect of cosmic cohesiveness; unlike Seinfeld, which alienated some viewers by suddenly enforcing karmic standards in its finale, Curb has always been rooted in Larry’s inevitable comeuppances. Daniel Fienberg, The Hollywood Reporter, 7 Feb. 2024 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'cosmic.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


Greek kosmikos, from kosmos order, universe

First Known Use

1685, in the meaning defined at sense 1a

Time Traveler
The first known use of cosmic was in 1685

Dictionary Entries Near cosmic

Cite this Entry

“Cosmic.” Dictionary, Merriam-Webster, Accessed 23 Feb. 2024.

Kids Definition


cos·​mic ˈkäz-mik How to pronounce cosmic (audio)
: of or relating to the cosmos
cosmic theories
: extremely vast : grand
cosmic dimensions

More from Merriam-Webster on cosmic

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!