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good-for-nothing(adjective, weak, careless, feeble, undirected)
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headlong(adjective, wild, thoughtless, negligent, carefree)
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heedless(adjective, careless, wild, thoughtless, daring)
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helter-skelter(adjective, wild, thoughtless, negligent, carefree)
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hotheaded(adjective, wild, thoughtless, deed, negligent)
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ill-advised(adjective, wild, thoughtless, deed, negligent)
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ill-considered(adjective, careless, immoral, thoughtless, reckless)
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immature(adjective, careless, immoral, thoughtless, reckless)
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immoral(adjective, careless, thoughtless, reckless, negligent)
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incompetent(adjective, weak, careless, feeble)
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inconsiderate(adjective, careless, wild, thoughtless, daring)
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indiscreet(adjective, careless, wild, thoughtless, daring)
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ineffective(adjective, weak, careless, feeble)
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ineffectual(adjective, weak, careless, feeble)
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inviting mishap
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kooky(adjective, wild, thoughtless, negligent, carefree)
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lax(adjective, careless, foolish, immoral, thoughtless)
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loose(adjective, careless, immoral, thoughtless, reckless)
0
madcap(adjective, wild, thoughtless, deed, negligent)
0
meaningless(adjective, weak, careless, feeble, undirected)
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APASmart Define. (2015). uncareful thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/uncareful/thesaurus/synonyms
ChicagoSmart Define. 2015. "uncareful thesaurus" https://smartdefine.org/uncareful/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, uncareful thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/uncareful/thesaurus/synonyms>.
MLASmart Define. "uncareful thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/uncareful/thesaurus/synonyms>