cosmic

adjective

cos·​mic ˈkäz-mik How to pronounce cosmic (audio)
variants or less commonly cosmical
ˈkäz-mi-kəl How to pronounce cosmic (audio)
Synonyms of cosmic
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
ˈkäz-mi-k(ə-)lē How to pronounce cosmic (audio)
adverb

Synonyms of cosmic

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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.
Get ready to watch as NASA's new cosmic observatory is launched into space atop a SpaceX rocket. — Eric Lagatta, USA Today, 28 Aug. 2026 In this cosmic battle, dark energy appears to be winning — expanding our universe over trillions of years until everything thins and smooths out into almost nothingness. — Noah Haggerty, Los Angeles Times, 28 Aug. 2026 August’s full sturgeon moon will align with a partial lunar eclipse this week, producing a stunning cosmic sight for sky-gazers. — Amen Galinato, CNN Money, 27 Aug. 2026 These cosmic behemoths can tell us more about our own Milky Way galaxy’s history and the universe’s evolution over time. — Mary Randolph, Scientific American, 27 Aug. 2026 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

Phrases Containing cosmic

Rhymes for cosmic

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Browse Nearby Words

cosmetology
cosmic
cosmicality
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Cite this Entry

“Cosmic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmic. Accessed 1 Sep. 2026.

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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
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