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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In scenes where Yura remembers her childhood and its connection to the beast, the animation takes on a gauzier, more primitive style that matches the film’s more cosmic, oceanic themes. Beatrice Loayza, Variety, 1 May 2026 Such heavy loads of dust are generally thought to arise much later in cosmic history than circa 400 million years after the big bang, the epoch at which this newfound galaxy appears. Jenna Ahart, Scientific American, 30 Apr. 2026 While the mission was designed with dark energy, dark matter, and exoplanets in mind, Roman’s unprecedented observational capability will offer practically limitless opportunities for astronomers to explore all kinds of cosmic topics. Richard Tribou, The Orlando Sentinel, 29 Apr. 2026 Superman's cousin Kara Zor-El (Milly Alcock) gets her own cosmic DC superhero adventure. Brian Truitt, USA Today, 28 Apr. 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 1 May. 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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