85 entries under adjective topic. ×

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cold(mean, harsh, cruel, vicious)
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combative(spirited, aggressive, ambitious, competing)
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competing(spirited, aggressive, ambitious, bloodthirsty)
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dangerous
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destructive
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detrimental
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dog eat dog(expression, idiom, ambitious, competing)
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emulous(spirited, aggressive, ambitious, competing)
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ferocious(mean, harsh, cruel, vicious)
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fierce(mean, harsh, cruel, vicious)
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grim(mean, harsh, cruel, vicious)
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hard-nosed(cruel, brutal, pitiless, callous)
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hardhearted(cruel, brutal, pitiless, callous)
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harmful
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harsh(mean, cruel, vicious, brutal)
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hurtful
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implacable(mean, harsh, cruel, vicious)
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inexorable(mean, harsh, cruel, vicious)
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injurious
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opposing(spirited, aggressive, ambitious, competing)
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APASmart Define. (2016). killer thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/killer/thesaurus/synonyms
ChicagoSmart Define. 2016. "killer thesaurus" https://smartdefine.org/killer/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, killer thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/killer/thesaurus/synonyms>.
MLASmart Define. "killer thesaurus" 30 March 2016. Web. 23 September 2026. <https://smartdefine.org/killer/thesaurus/synonyms>