105 entries under adverb topic. ×

9
cruelly(fiercely, negatively, unkindly, viciously)
9
grimly(negatively, in a bad way, in awful way)
8
hardheartedly(fiercely, cruelly, viciously, coldly)
7
heartlessly(fiercely, cruelly, indifferently, viciously)
7
unfeelingly(harshly, cruelly, indifferently, coldly)
4
brutally(negatively, in awful way)
4
coldheartedly(negatively, in a bad way, in awful way)
4
indifferently(deliberately, cruelly, coldly, insensitively)
4
insensitively(harshly, cruelly, thoughtlessly, indifferently)
4
numbly(insensitively, senselessly)
4
stonily
4
unkindly(fiercely, cruelly, viciously, in a bad way)
3
aloofly(insensitively, in a bad way, senselessly)
3
brutishly(negatively, in awful way)
3
demoniacally(negatively, in awful way)
3
frigidly(negatively, in a bad way)
3
insensibly
3
ruthlessly
3
toughly
3
unsympathetically(cruelly, insensitively, pitilessly, ruthlessly)
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APASmart Define. (2016). callously thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/callously/thesaurus/synonyms
ChicagoSmart Define. 2016. "callously thesaurus" https://smartdefine.org/callously/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, callously thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/callously/thesaurus/synonyms>.
MLASmart Define. "callously thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/callously/thesaurus/synonyms>