Synonyms|663Antonyms|226|Broader|7Narrower|9Related|1.2k
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faultless
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financially unsound
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foolhardy
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fractious
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frisky
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frivolous
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frolicsome
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guileless
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guiltless
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haughty
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hopeless
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iffy
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ignorant
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ill-conceived(reasonable, sensible)
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immaturity
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imperative
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imperious
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imprudent(kind, prudent)
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indecisive
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indeterminate
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APASmart Define. (2015). responsible thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/responsible/thesaurus/antonyms
ChicagoSmart Define. 2015. "responsible thesaurus" https://smartdefine.org/responsible/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2015, responsible thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/responsible/thesaurus/antonyms>.
MLASmart Define. "responsible thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/responsible/thesaurus/antonyms>