Synonyms|277Antonyms|133|Broader|2Narrower|0Related|570
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bad(adjective, worthless, unacceptable, inoperative, incapacitated)
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barbarian
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barbaric
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beyond the pale(expression, adjective, idiom, indefensible, unwarrantable)
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bootless
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brainless(foolish, unreasonable, illogical)
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bubble
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captious
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casual(adjective, unfounded)
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casuistic
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cockamamie(foolish, unreasonable, illogical)
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contemptible(poor, implausible, unconvincing)
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controvertible(poor, implausible, unconvincing)
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counterfeit
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delirious(foolish, unreasonable, illogical)
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demented(foolish, unreasonable, illogical)
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disconnected(foolish, unreasonable, illogical)
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disjointed(foolish, unreasonable, illogical)
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distraught(foolish, unreasonable, illogical)
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dotty
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APASmart Define. (2015). baseless thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/baseless/thesaurus/synonyms
ChicagoSmart Define. 2015. "baseless thesaurus" https://smartdefine.org/baseless/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, baseless thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/baseless/thesaurus/synonyms>.
MLASmart Define. "baseless thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/baseless/thesaurus/synonyms>