12
astronomic(adjective, huge)
12
huge(adjective, expensive, high-priced, pricey, pricely)
12
vast(adjective, large, huge, expensive, high-priced)
10
galactic(adjective, celestial, astral)
9
enormous(adjective, huge, expensive, high-priced, pricey)
8
planetary(adjective, common, space, universal, general)
8
astral(adjective, celestial, planetary)
7
infinite(adjective, immeasurable)
7
tremendous(adjective, huge)
6
gigantic(adjective, huge, immeasurable)
6
epic(adjective, huge)
6
gargantuan
6
massive(adjective, huge)
6
prodigious(adjective, huge, expensive, high-priced, pricey)
6
titanic
5
colossal(adjective, huge)
5
immense
5
monumental(adjective, huge)
5
solar(adjective, planetary, astral)
4
above average(expression, adjective, extraordinary, exceptional, extreme)
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APASmart Define. (2015). astronomical thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/astronomical/thesaurus/synonyms
ChicagoSmart Define. 2015. "astronomical thesaurus" https://smartdefine.org/astronomical/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, astronomical thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/astronomical/thesaurus/synonyms>.
MLASmart Define. "astronomical thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/astronomical/thesaurus/synonyms>