cosmic

adjective

cos·​mic ˈkäz-mik How to pronounce cosmic (audio)
variants or less commonly cosmical
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.
Still, just as no two desserts are the same, all 12 zodiac signs carry their own signature flavor, perhaps even a go-to fall treat that captures their cosmic essence. Valerie Mesa, PEOPLE, 30 Oct. 2025 Out in the cosmic landscape, planetary nebulas would offer the perfect Halloween doors to knock on. Monisha Ravisetti, Space.com, 30 Oct. 2025 This ancient traveler from beyond our solar system is offering scientists a rare glimpse into primordial cosmic material. Hannah Parry, MSNBC Newsweek, 29 Oct. 2025 Today, Christian views on everything from the afterlife to the cosmic struggle of good and evil would be quite foreign to a pre-Pauline Christian, and that’s because of where the conversation has taken the tradition in the intervening centuries. Big Think, 28 Oct. 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

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Cite this Entry

“Cosmic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmic. Accessed 31 Oct. 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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