475 entries under adjective topic. ×

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blind to(expression, careless, cruel, apathetic)
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bloodless
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both feet on the ground(expression, idiom, useful, possible)
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brutal
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brutish
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bullhead(stiff, unfeeling, rigid, dogged)
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bullheaded(shrewd, astute)
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businesslike(useful, possible, functional, workable)
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by the book(expression, idiom, authoritarian)
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callous(tough, disciplined, unexcitable, hard-nosed)
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calm(factual, unembellished, stoic)
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careless(cruel, apathetic)
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case-hardened(careless, cruel, apathetic, callous)
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casehardened(callous, disciplined, unexcitable, grooved)
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casual(indifferent, detached, distant, remote)
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chill(reticent, listless)
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chilly(indifferent, detached, distant, remote)
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churlish
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clear-headed(quiet, restrained, sober, subdued)
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coarse(simple, unsophisticated, funky)
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APASmart Define. (2013). hardboiled thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/hardboiled/thesaurus/synonyms
ChicagoSmart Define. 2013. "hardboiled thesaurus" https://smartdefine.org/hardboiled/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2013, hardboiled thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/hardboiled/thesaurus/synonyms>.
MLASmart Define. "hardboiled thesaurus" 18 May 2013. Web. 27 September 2026. <https://smartdefine.org/hardboiled/thesaurus/synonyms>