Planetary
Planetary adjective - Unusually large.
Usage example: a positively planetary new shopping development
Vast and planetary are semantically related. In some cases you can use "Vast" instead an adjective "Planetary".
Nearby Words: planet, planetarium
Mutual synonyms
Related pairs
Both words in one sentence
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In the backstory, the Great Cataclysm was caused when a nuclear war took place on the Winter Solstice, during a planetary alignment, feeding vast amounts of power into the ley lines.
Source: Ley Line -
Planetary: an entire planet, or the vast majority of one.
Source: Apocalypse How -
This is a planetary bombardment that sometimes involves lethal, biosphere-melting virus bombs, but more often cyclone torpedoes and other munitions that cause instant, vast firestorms to scour the planet's surface down to the bedrock.
Source: World-Wrecking Wave
Cite this Source
Vast and Planetary. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/planetary/vast
Planetary & Vast. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/planetary/vast>.
Vast or Planetary. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/planetary/vast.
Google Ngram Viewer shows how "planetary" and "vast" have occurred on timeline