49 entries under callous topic. ×

15
merciless(adjective, mean, harsh, cruel, vicious)
14
killer(noun, adjective, person, help, mean)
11
cruel(adjective, mean, strong, severe, harsh)
9
fierce(adjective, mean, severe, harsh, violent)
8
ruthless(adjective, mean, severe, harsh, cruel)
8
unmerciful(adjective, mean, severe, harsh, cruel)
8
pitiless(adjective, mean, hard, severe, care)
7
dog-eat-dog(adjective, mean, severe, harsh, cruel)
7
brutal(adjective, mean, strong, hard, severe)
7
ferocious(adjective, mean, strong, severe, harsh)
7
savage(adjective, mean, strong, hard, severe)
6
relentless(adjective, mean, strong, hard, severe)
6
vicious(adjective, mean, strong, severe, harsh)
5
barbarous(adjective, mean, strong, hard, severe)
4
hardhearted(adjective, mean, hard, severe, harsh)
4
unforgiving(adjective, mean, hard, severe, harsh)
4
unsympathetic(adjective, mean, hard, severe, harsh)
3
cold-blooded(adjective, mean, hard, harsh, cruel)
3
feral(adjective, mean, strong, severe, harsh)
3
inhuman(adjective, mean, hard, harsh, cold)
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APASmart Define. (2015). cutthroat thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/cutthroat/thesaurus/synonyms
ChicagoSmart Define. 2015. "cutthroat thesaurus" https://smartdefine.org/cutthroat/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, cutthroat thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/cutthroat/thesaurus/synonyms>.
MLASmart Define. "cutthroat thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/cutthroat/thesaurus/synonyms>