93 entries under careless topic. ×

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fly-by-night(immoral, thoughtless, reckless, negligent)
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immoral(thoughtless, reckless, negligent, immature)
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irresolute(adjective, inconstant, giddy)
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lax(immoral, thoughtless, reckless, negligent)
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lightheade(adjective, inconstant, giddy)
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loose(immoral, thoughtless, reckless, negligent)
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negligent(wild, thoughtless, reckless, irresponsible)
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no-account(immoral, thoughtless, reckless, negligent)
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shiftless(thoughtless, reckless, negligent)
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unaccountable(immoral, thoughtless, reckless, negligent)
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unanswerable(immoral, thoughtless, reckless, negligent)
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unpredictable(immoral, thoughtless, reckless, negligent)
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untrustworthy(immoral, thoughtless, reckless, negligent)
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APASmart Define. (2015). harebrained thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/harebrained/thesaurus/synonyms
ChicagoSmart Define. 2015. "harebrained thesaurus" https://smartdefine.org/harebrained/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, harebrained thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/harebrained/thesaurus/synonyms>.
MLASmart Define. "harebrained thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/harebrained/thesaurus/synonyms>