80 entries under careless topic. ×

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ill-considered(thoughtless, reckless, negligent)
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immature(thoughtless, reckless, negligent)
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immoral(thoughtless, reckless, negligent)
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imprudent(reckless, negligent, spendthrift)
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incautious(weak, feeble, thoughtless, reckless)
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ineffectual(weak, feeble)
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loose(thoughtless, reckless, negligent)
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meaningless(weak, feeble, undirected, directionless)
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no-account(thoughtless, reckless, negligent, undirected)
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rash(thoughtless, reckless, negligent, imprudent)
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scatterbrained(thoughtless, reckless, negligent)
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unaccountable(thoughtless, reckless, negligent)
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unanswerable(thoughtless, reckless, negligent)
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undependable(thoughtless, reckless, negligent)
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unreliable(thoughtless, reckless, negligent)
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unstable(thoughtless, reckless, negligent)
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untrustworthy(adjective, thoughtless, dubious, lazy)
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useless(weak, feeble, undirected, directionless)
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without purpose(expression, weak, feeble)
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worthless(weak, feeble, undirected, directionless)
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APASmart Define. (2015). shiftless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/shiftless/thesaurus/synonyms
ChicagoSmart Define. 2015. "shiftless thesaurus" https://smartdefine.org/shiftless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, shiftless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/shiftless/thesaurus/synonyms>.
MLASmart Define. "shiftless thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/shiftless/thesaurus/synonyms>