7
hard
2
cruel
1
heartless
1
unyielding
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APASmart Define. (2016). hard-hearted thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/hard-hearted/thesaurus/broader
ChicagoSmart Define. 2016. "hard-hearted thesaurus" https://smartdefine.org/hard-hearted/thesaurus/broader (accessed September 22, 2026).
HarvardSmart Define 2016, hard-hearted thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/hard-hearted/thesaurus/broader>.
MLASmart Define. "hard-hearted thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/hard-hearted/thesaurus/broader>