Synonyms|169Antonyms|17|Broader|0Narrower|0Related|44
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inhuman
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insane
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intolerant
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lumpen
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lumpish
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mad
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madcap(adjective, thoughtless)
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merciless
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moronic
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nonsensical
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pitiless
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rigid
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ruthless
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severe
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short-sighted
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stern
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stupid
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thick-skinned
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tough
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unbending
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APASmart Define. (2015). unthoughtful thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unthoughtful/thesaurus/synonyms
ChicagoSmart Define. 2015. "unthoughtful thesaurus" https://smartdefine.org/unthoughtful/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unthoughtful thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unthoughtful/thesaurus/synonyms>.
MLASmart Define. "unthoughtful thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/unthoughtful/thesaurus/synonyms>