9
cruelly(adverb, fiercely, negatively, unkindly, viciously)
9
grimly(adverb, negatively, in a bad way, in awful way)
8
hardheartedly(adverb, fiercely, cruelly, viciously, coldly)
7
heartlessly(adverb, fiercely, cruelly, indifferently, viciously)
7
unfeelingly(adverb, harshly, cruelly, indifferently, coldly)
4
brutally(adverb, negatively, in awful way)
4
coldheartedly(adverb, negatively, in a bad way, in awful way)
4
indifferently(adverb, deliberately, cruelly, coldly, insensitively)
4
insensitively(adverb, harshly, cruelly, thoughtlessly, indifferently)
4
numbly(adverb, insensitively, senselessly)
4
stonily(adverb, insensitively)
4
unkindly(adverb, fiercely, cruelly, viciously, in a bad way)
3
aloofly(adverb, insensitively, in a bad way, senselessly)
3
brutishly(adverb, negatively, in awful way)
3
demoniacally(adverb, negatively, in awful way)
3
frigidly(adverb, negatively, in a bad way)
3
insensibly(adverb, senselessly)
3
ruthlessly(adverb, insensitively)
3
toughly(adverb, insensitively)
3
unsympathetically(adverb, cruelly, insensitively, pitilessly, ruthlessly)
<123458>
10 years ago|4k views|share |citing 
APASmart Define. (2016). callously thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/callously/thesaurus/synonyms
ChicagoSmart Define. 2016. "callously thesaurus" https://smartdefine.org/callously/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, callously thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/callously/thesaurus/synonyms>.
MLASmart Define. "callously thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/callously/thesaurus/synonyms>