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
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Over billions of years, gravity amplified these small density variations, helping produce the large-scale cosmic web of galaxies and dark matter observed today. — Kaif Shaikh, Interesting Engineering, 20 Oct. 2026 Among those cosmic relics are raw organic building blocks, the kind that may have seeded life on Earth. — Sharmila Kuthunur, Space.com, 20 Oct. 2026 Japan has an edge going in, with two asteroid sample returns already under its cosmic belt. — ABC News, 19 Oct. 2026 The cosmic pileup left behind three new galaxies, each bereft of dark matter, each left to struggle to form a new batch of stars. — Quanta Magazine, 14 Oct. 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

See All Rhymes for cosmic

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 27 Oct. 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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