124 entries under vicious topic. ×

10
severe(adjective, calm, mean, hard, tough)
9
barbarous(adjective, mean, hard, severe, evil)
9
unmerciful(adjective, mean, severe, harsh, cruel)
8
atrocious(adjective, evil, nasty, harsh, cruel)
7
flinty(adjective, evil, nasty, harsh)
7
mean(verb, adjective, hard, cool, tough)
7
savage(adjective, mean, hard, rough, harsh)
6
adamant(adjective, person, mean, hard, rough)
6
bloodthirsty(adjective, evil, nasty, harsh, cruel)
6
inhumane(adjective, mean, hard, severe, evil)
6
rough(verb, adjective, person, dull, hard)
6
rude(adjective, dull, hard, rough, nasty)
6
stern(adjective, mean, hard, tough, severe)
5
hard-nosed(adjective, mean, hard, tough, evil)
5
unforgiving(adjective, person, mean, hard, severe)
5
unyielding(adjective, mean, hard, severe, rough)
4
bestial(adjective, evil, nasty, harsh, cruel)
4
brutish(adjective, hard, evil, nasty, harsh)
4
hostile(adjective, person, hard, tough, evil)
4
impolite(adjective, cruel, fierce, pitiless)
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APASmart Define. (2016). callous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/callous/thesaurus/synonyms
ChicagoSmart Define. 2016. "callous thesaurus" https://smartdefine.org/callous/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, callous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/callous/thesaurus/synonyms>.
MLASmart Define. "callous thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/callous/thesaurus/synonyms>