Synonyms|623Antonyms|148|Broader|0Narrower|2Related|402
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impassive(adjective, uncertain, dubious)
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impetuous
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impractical(adjective, unsound)
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imprecise(adjective, dull, obscure)
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impromptu
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imprudent(adjective, incautious)
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impulsive
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inadvertent
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incidental
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indefinite(adjective, incautious)
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indeterminate(adjective, incautious)
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indifferent
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indirect(adjective, dull, obscure)
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indiscreet(adjective, uncertain, dubious)
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inexact(adjective, dull, obscure)
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insensitive(adjective, uncertain, dubious)
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instinctive
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irrational(adjective, unsound)
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irresponsible(adjective, apathetic)
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lazy(adjective, stupid)
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APASmart Define. (2015). witting thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/witting/thesaurus/antonyms
ChicagoSmart Define. 2015. "witting thesaurus" https://smartdefine.org/witting/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2015, witting thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/witting/thesaurus/antonyms>.
MLASmart Define. "witting thesaurus" 21 December 2015. Web. 25 September 2026. <https://smartdefine.org/witting/thesaurus/antonyms>