180 entries under careless topic. ×

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outrageous(thoughtless, inconsiderate)
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profligate(adjective, thoughtless, reckless, imprudent)
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tactless(rude, thoughtless, unkind, uncaring)
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unaccountable
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unanswerable
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uncareful(adjective, wild, foolish, thoughtless)
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undependable(adjective, foolish, reckless)
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undiplomatic(rude, thoughtless, unkind, uncaring)
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unintended(thoughtless, inconsiderate)
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unintentional(adjective, reckless, accidental, unintended)
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unmeant(thoughtless, inconsiderate)
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unpredictable
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unpremeditated(thoughtless, inconsiderate)
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unreasonable(adjective, senseless, insensitive, obtuse)
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unreasoning(thoughtless, inconsiderate, obtuse, unperceptive)
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unreliable(adjective, foolish, reckless, scatterbrained)
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unstable(adjective, foolish, reckless)
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untactful(thoughtless, inconsiderate)
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untrustworthy(adjective, foolish, reckless)
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vacant(thoughtless, inconsiderate)
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APASmart Define. (2015). negligent thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/negligent/thesaurus/synonyms
ChicagoSmart Define. 2015. "negligent thesaurus" https://smartdefine.org/negligent/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, negligent thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/negligent/thesaurus/synonyms>.
MLASmart Define. "negligent thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/negligent/thesaurus/synonyms>