| astrological(astronomical, astral) | |
| astrophysical(planetary, astronomical, astral) | |
| background radiation(expression, idiom, calefaction) | |
| beta rays(expression, idiom, calefaction) | |
| catheretic | |
| caustic | |
| cauterizer | |
| chief(astronomical, astral) | |
| cosmological(planetary, astronomical, astral) | |
| earthly | |
| empyreal(adjective, stellar) | |
| expansive | |
| far-flung | |
| far-ranging | |
| far-reaching | |
| gamma rays(expression, idiom, calefaction) | |
| geotic | |
| gigantesque | |
| heliacal(adjective, stellar) | |
| himalayan |
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| APA | Smart Define. (2015). cosmic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/cosmic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "cosmic thesaurus" https://smartdefine.org/cosmic/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, cosmic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/cosmic/thesaurus/synonyms>. |
| MLA | Smart Define. "cosmic thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/cosmic/thesaurus/synonyms> |