74 entries under hard-boiled topic. ×

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impenetrable(adjective, toughened, cynical, hard-bitten)
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impious(adjective, toughened, cynical, hard-bitten)
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inaccessible(adjective, toughened, cynical, hard-bitten)
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indurated(adjective, toughened, cynical, hard-bitten)
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irreverent(adjective, toughened, cynical, hard-bitten)
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obtuse(adjective, toughened, cynical, hard-bitten)
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prepared(adjective, toughened, cynical, hard-bitten)
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resistant(adjective, toughened, cynical, hard-bitten)
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seasoned(adjective, toughened, cynical, hard-bitten)
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steeled(adjective, toughened, cynical, hard-bitten)
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unashamed(adjective, toughened, cynical, hard-bitten)
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unemotional(adjective, tough, rational, straightforward, unfeeling)
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unrepenting(adjective, toughened, cynical, hard-bitten)
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unsubmissive(adjective, toughened, cynical, hard-bitten)
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APASmart Define. (2015). unsentimental thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unsentimental/thesaurus/synonyms
ChicagoSmart Define. 2015. "unsentimental thesaurus" https://smartdefine.org/unsentimental/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unsentimental thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unsentimental/thesaurus/synonyms>.
MLASmart Define. "unsentimental thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/unsentimental/thesaurus/synonyms>