70 entries under callous topic. ×

2
cutthroat(adjective, mean, hard, severe, harsh)
2
dog-eat-dog(adjective, mean, hard, severe, harsh)
2
hard as nails(expression, adjective, idiom, set, strong)
2
unmerciful(adjective, mean, harsh, cruel, vicious)
2
vindictive(adjective, person, mean, harsh, cruel)
1
barbarous(adjective, mean, hard, harsh, cold)
1
feelingless(adjective, hard, tough, severe, indifferent)
1
feral(adjective, mean, severe, harsh, cruel)
1
hard-nosed(adjective, hard, cruel, unfeeling, unsympathetic)
1
incurious(adjective, hard, indifferent, unsympathetic, unkind)
1
ironfisted(adjective, mean, severe, harsh, cruel)
1
killer(adjective, mean, severe, harsh, cruel)
1
obtuse(adjective, hard, indifferent, unfeeling, unsympathetic)
1
relentless(adjective, mean, hard, harsh, cold)
1
remorseless(adjective, mean, hard, severe, harsh)
1
surly(adjective, mean, hard, tough, severe)
1
unsusceptible(adjective, hard, careless, indifferent, cruel)
1
without pity(expression, adjective, mean, severe, harsh)
0
crass(adjective, hard, indifferent, unkind, unresponsive)
0
ferocious(adjective, mean, harsh, cruel, vicious)
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APASmart Define. (2016). stony thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/stony/thesaurus/synonyms
ChicagoSmart Define. 2016. "stony thesaurus" https://smartdefine.org/stony/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, stony thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/stony/thesaurus/synonyms>.
MLASmart Define. "stony thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/stony/thesaurus/synonyms>