5 entries under fiercely topic. ×

9
cruelly(adverb, negatively, unkindly, viciously)
8
hardheartedly(adverb, cruelly, viciously, coldly)
7
heartlessly(adverb, cruelly, indifferently, viciously)
4
unkindly(adverb, cruelly, viciously, in a bad way)
1
meanly(adverb, cruelly, unkindly, viciously)
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APASmart Define. (2016). callously thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/callously/thesaurus/synonyms
ChicagoSmart Define. 2016. "callously thesaurus" https://smartdefine.org/callously/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, callously thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/callously/thesaurus/synonyms>.
MLASmart Define. "callously thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/callously/thesaurus/synonyms>