182 entries under adjective topic. ×

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incompetent(poor, inadequate, sloppy, ineffective)
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inconceivable(poor, thin, small, inadequate)
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inconclusive(poor, thin, small, inadequate)
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incredible(poor, thin, small, inadequate)
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ineffective(poor, inadequate, ineffectual, toothless)
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ineffectual(poor, inadequate, ineffective, toothless)
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inept(poor, inadequate, sloppy, ineffective)
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invalid(poor, inadequate, ineffective, ineffectual)
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mangy(common, inferior, second-rate, shoddy)
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meretricious(common, inferior, second-rate, shoddy)
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meritless
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mortifying(quiet, slack, rotten, tainted)
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no bargain(expression, common, inferior, second-rate)
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no good(expression, poor, common, inferior)
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putrid(quiet, slack, rotten, tainted)
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rancid(quiet, slack, rotten, tainted)
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ratty(common, inferior, second-rate, shoddy)
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raw(poor, thin, small, inadequate)
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rinky-dink(common, inferior, second-rate, shoddy)
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rubbishy(common, inferior, cheap, second-rate)
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APASmart Define. (2016). substandard thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/substandard/thesaurus/synonyms
ChicagoSmart Define. 2016. "substandard thesaurus" https://smartdefine.org/substandard/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, substandard thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/substandard/thesaurus/synonyms>.
MLASmart Define. "substandard thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/substandard/thesaurus/synonyms>