Synonyms|304Antonyms|1|Broader|1Narrower|0Related|7

55 entries under unbelievable topic. ×

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fictive(adjective, fantastic, imaginary, weird, unlikely)
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flaky(adjective, fantastic, imaginary, unlikely)
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floating(adjective, fantastic, imaginary, unlikely)
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imaginative(adjective, fantastic, imaginary, unlikely)
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imagined(adjective, fantastic, imaginary, weird, unlikely)
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invented(adjective, fantastic, imaginary, weird, unlikely)
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kinky(adjective, unusual, fantastic, imaginary, unlikely)
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notional(adjective, fantastic, imaginary, weird, unlikely)
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on cloud nine(expression, adjective, idiom, fantastic, imaginary)
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pie in the sky(expression, adjective, idiom, fantastic, imaginary)
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pipe dream(expression, adjective, fantastic, imaginary, unlikely)
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poetic(adjective, fantastic, imaginary, unlikely)
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preposterous(adjective, fantastic, imaginary, unlikely)
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suppositious(adjective, fantastic, imaginary, weird, unlikely)
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unlikely(adjective, superb, fantastic, amazing, remarkable)
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APASmart Define. (2016). out of this world thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/out_of_this_world/thesaurus/synonyms
ChicagoSmart Define. 2016. "out of this world thesaurus" https://smartdefine.org/out_of_this_world/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, out of this world thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/out_of_this_world/thesaurus/synonyms>.
MLASmart Define. "out of this world thesaurus" 13 February 2016. Web. 1 October 2026. <https://smartdefine.org/out_of_this_world/thesaurus/synonyms>