71 entries under adjective topic. ×

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perfunctory(unthinking, automatic)
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realistic
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shallow(ignorant, unintelligent)
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shortsighted
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trivial(happy, careless, superficial, flippant)
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uncareful(kind, happy, careless, reserved)
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unconcerned
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unimportant(happy, careless, superficial, flippant)
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unreasonable(happy, careless, superficial, flippant)
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unsympathetic
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wanton
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APASmart Define. (2016). thoughtful thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/thoughtful/thesaurus/antonyms
ChicagoSmart Define. 2016. "thoughtful thesaurus" https://smartdefine.org/thoughtful/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2016, thoughtful thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/thoughtful/thesaurus/antonyms>.
MLASmart Define. "thoughtful thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/thoughtful/thesaurus/antonyms>