13 entries under callous topic. ×

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hardened(adjective, hard, unfeeling, unsympathetic)
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casehardened(adjective, hard, unfeeling, unsympathetic, hardened)
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coldblooded(adjective, disciplined, unexcitable, grooved)
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hard(adjective, unfeeling, unsympathetic, hardened)
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hard as nails(expression, adjective, idiom, unfeeling)
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hardboiled(adjective, disciplined, seasoned, unexcitable)
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impassive(adjective, hard, unfeeling, unsympathetic, hardened)
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inexcitable(adjective, unexcitable, hard-as-nails)
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matter of fact(expression, adjective, idiom, unexcitable)
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poker-faced(adjective, unexcitable, hard-as-nails)
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stoical(adjective, unexcitable, hard-as-nails)
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unexcitable(adjective, hard-as-nails)
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unimpressible(adjective, unexcitable, hard-as-nails)
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APASmart Define. (2015). unsubmissive thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unsubmissive/thesaurus/synonyms
ChicagoSmart Define. 2015. "unsubmissive thesaurus" https://smartdefine.org/unsubmissive/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unsubmissive thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unsubmissive/thesaurus/synonyms>.
MLASmart Define. "unsubmissive thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/unsubmissive/thesaurus/synonyms>