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
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As adroit Mercury starts reversing through your contemplative 12th house, its retrograde invites you to press pause on the cosmic movie in favor of reviewing what’s already happened. Tarot.com, Sun Sentinel, 26 Feb. 2026 These trump cards depicted allegorical figures such as Justice, Temperance, Death, and The World, reflecting Renaissance ideals of virtue, morality, and cosmic order. Literary Hub, 26 Feb. 2026 There’s one more factor that needs to be taken into account on the largest of cosmic scales, including for the cosmic measurements of the event horizon of the black hole at the center of galaxy Messier 87, and that is the expansion of the Universe. Big Think, 25 Feb. 2026 When these cosmic titans are surrounded by a swirling cloud of matter called an accretion disk, which gradually feeds them, they are said to sit in a region called an Active Galactic Nucleus (AGN). Robert Lea, Space.com, 25 Feb. 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

Browse Nearby Words

Cite this Entry

“Cosmic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmic. Accessed 3 Mar. 2026.

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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