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 the real cosmic headline arrives on April 25, when Uranus re-enters your sign, continuing a thrilling new chapter of change and reinvention. Valerie Mesa, PEOPLE, 1 Apr. 2026 In Mahayana and Tibetan Buddhism, there are more buddhas than just the single historical Buddha (Gautama or Shakyamuni Buddha), and Vairochana is considered to be the supreme and cosmic form of the Buddha, of which the others are emanations. Encyclopedia Britannica, 1 Apr. 2026 This cosmic expansion doesn’t actually consist of anything exceeding the speed of light, as the limits of special relativity (which limit speeds to a limit of the speed of light) are confined to two objects passing each other at the same location in space. Big Think, 31 Mar. 2026 The mission also flew through the Van Allen radiation belt, providing valuable data for scientists on Earth related to the effects of cosmic radiation on the human body. Chris Young, Interesting Engineering, 31 Mar. 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 4 Apr. 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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