cosmic

adjective

cos·​mic ˈkäz-mik How to pronounce cosmic (audio)
variants or less commonly cosmical
Synonyms of cosmicnext
1
a
: of or relating to the cosmos, the extraterrestrial vastness, or the universe in contrast to the earth alone
cosmic radiation
b
: of, relating to, or concerned with abstract spiritual or metaphysical (see metaphysical sense 2) ideas
cosmic wisdom
2
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But to astronomers, the images — taken from a telescopic array in southern California of cosmic events occurring thousands of light-years away — provide valuable insights. Keith Matheny, Freep.com, 11 Dec. 2025 Galaxy clusters are the most massive objects in the universe held together by gravity, containing galaxies, hot gas, and dark matter, offering clues on how cosmic structures form and evolve. Samantha Mathewson, Space.com, 11 Dec. 2025 But mostly, Hall’s Linda just listens, elevating a simple act into a form of cosmic communication. Stephanie Zacharek, Time, 11 Dec. 2025 The cosmic display is famed for its strong, bright and colorful fireballs that blaze across the sky at speeds reaching about 120 miles per second. Eric Lagatta, USA Today, 10 Dec. 2025 See All Example Sentences for cosmic

Word History

Etymology

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

Browse Nearby Words

Cite this Entry

“Cosmic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmic. Accessed 13 Dec. 2025.

Kids Definition

cosmic

adjective
cos·​mic ˈkäz-mik How to pronounce cosmic (audio)
1
: of or relating to the cosmos
cosmic theories
2
: extremely vast : grand
cosmic dimensions

More from Merriam-Webster on cosmic

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