66 entries under strict topic. ×

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ruthless(adjective, cruel, brutal, unkind)
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thick-skinned(adjective, tough, harsh, cruel, grim)
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tight(adjective, severe, stiff, rigid)
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unfeeling(adjective, tough, harsh, cruel, grim)
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unrelenting(adjective, tough, harsh, cruel, grim)
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unsympathetic(adjective, tough, harsh, cruel, grim)
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APASmart Define. (2015). acrimonious thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/acrimonious/thesaurus/synonyms
ChicagoSmart Define. 2015. "acrimonious thesaurus" https://smartdefine.org/acrimonious/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, acrimonious thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/acrimonious/thesaurus/synonyms>.
MLASmart Define. "acrimonious thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/acrimonious/thesaurus/synonyms>