Synonyms|221Antonyms|15|Broader|4Narrower|0Related|224
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interstellar
0
little green man(noun, alien)
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lunar
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marginal(outside, external)
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men from outer space(noun, alien)
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metaphysical(fantastic, spiritual)
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new arrival(expression, idiom)
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newcomer
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nonresident
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out-of--body
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out of this world(adjective, extraordinary)
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outcast
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outdoor(outside, external)
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outer space(expression, idiom)
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outermost(outside, external)
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outlying(outside, external)
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outmost(outside, external)
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outsider
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outward(outside, external)
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over(outside, external)
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APASmart Define. (2016). extraterrestrial thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/extraterrestrial/thesaurus/synonyms
ChicagoSmart Define. 2016. "extraterrestrial thesaurus" https://smartdefine.org/extraterrestrial/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, extraterrestrial thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/extraterrestrial/thesaurus/synonyms>.
MLASmart Define. "extraterrestrial thesaurus" 15 March 2016. Web. 26 September 2026. <https://smartdefine.org/extraterrestrial/thesaurus/synonyms>