35 entries under unobservant topic. ×

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indiscriminating(obtuse, unperceptive)
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inept(careless, stupid, unthinking, obtuse, unperceptive)
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injudicious(careless, stupid, unthinking, obtuse, unperceptive)
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insensitive(obtuse, unperceptive)
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irreflective(careless, stupid, unthinking, obtuse, unperceptive)
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neglectful(obtuse, unperceptive)
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negligent(obtuse, unperceptive)
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rash(obtuse, unperceptive)
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reckless(obtuse, unperceptive)
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regardless(careless, stupid, unthinking, obtuse, unperceptive)
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remiss(careless, stupid, unthinking, obtuse, unperceptive)
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undiscerning(careless, stupid, unthinking, obtuse, unperceptive)
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unheeding(obtuse, unperceptive)
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unperceptive
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unreflective(careless, stupid, unthinking, obtuse, unperceptive)
<12>
11 years ago|15k views|share |citing 
APASmart Define. (2015). vacuous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/vacuous/thesaurus/synonyms
ChicagoSmart Define. 2015. "vacuous thesaurus" https://smartdefine.org/vacuous/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, vacuous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/vacuous/thesaurus/synonyms>.
MLASmart Define. "vacuous thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/vacuous/thesaurus/synonyms>