Synonyms|352Antonyms|121|Broader|4Narrower|7Related|1.4k
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pie(unreasonable, improper)
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potential
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prospective
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putative
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rational
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realistic(adjective, reasonable, plausible)
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realizable
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reasoned
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reliable
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reputed
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seeming
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sensible
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sober
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solid
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supposed
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thought-out(stupid, unsound)
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tolerable
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unremarkable
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up and coming(expression, idiom, unreasonable)
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viable
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APASmart Define. (2015). implausible thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/implausible/thesaurus/antonyms
ChicagoSmart Define. 2015. "implausible thesaurus" https://smartdefine.org/implausible/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, implausible thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/implausible/thesaurus/antonyms>.
MLASmart Define. "implausible thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/implausible/thesaurus/antonyms>