99 entries under merciless topic. ×

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bestial(adjective, severe, nasty, harsh, cruel)
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brutish(adjective, nasty, violent, wild, fierce)
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cutthroat(adjective, mean, harsh, cruel, vicious)
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degenerate(adjective, nasty, violent, wild, fierce)
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demoniac(adjective, nasty, unkind, pitiless, malicious)
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dog-eat-dog(adjective, mean, harsh, cruel, vicious)
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excruciating(adjective, nasty, unkind, pitiless, malicious)
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feral(adjective, mean, harsh, cruel, vicious)
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flinty(adjective, nasty, unkind, pitiless, malicious)
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hard-nosed(adjective, cruel, brutal, pitiless, callous)
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hellish(adjective, nasty, vicious, wicked, hateful)
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intractable(adjective, cruel, pitiless, ruthless)
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killer(adjective, mean, harsh, cruel, vicious)
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painful(adjective, nasty, unkind, pitiless, malicious)
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pernicious(adjective, nasty, vicious, wicked, hateful)
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poignant(adjective, nasty, unkind, pitiless, malicious)
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surly(adjective, mean, harsh, cruel, vicious)
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unnatural(adjective, nasty, unkind, pitiless, malicious)
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without pity(expression, adjective, mean, harsh, cruel)
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APASmart Define. (2016). vindictive thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/vindictive/thesaurus/synonyms
ChicagoSmart Define. 2016. "vindictive thesaurus" https://smartdefine.org/vindictive/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, vindictive thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/vindictive/thesaurus/synonyms>.
MLASmart Define. "vindictive thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/vindictive/thesaurus/synonyms>