73 entries under vicious topic. ×

8
unyielding(adjective, mean, hard, tough, harsh)
7
remorseless(adjective, mean, hard, severe, harsh)
6
inhumane(adjective, mean, hard, tough, evil)
6
mean(adjective, hard, tough, nasty, harsh)
5
barbarous(adjective, mean, hard, tough, evil)
5
flinty(adjective, evil, nasty, harsh)
5
inexorable(adjective, mean, hard, tough, evil)
5
relentless(adjective, mean, hard, tough, evil)
4
adamant(adjective, mean, hard, tough, harsh)
4
brutish(adjective, evil, nasty, harsh)
4
stern(adjective, mean, severe, harsh, cruel)
4
tyrannical(adjective, hard, tough, evil, nasty)
4
unforgiving(adjective, mean, hard, tough, harsh)
4
unnatural(adjective, evil, nasty, harsh)
4
unrelenting(adjective, mean, hard, tough, evil)
3
fierce(adjective, mean, hard, tough, evil)
3
implacable(adjective, mean, hard, tough, evil)
2
atrocious(adjective, evil, nasty, harsh)
2
bestial(adjective, evil, nasty, harsh)
2
ferocious(adjective, mean, evil, nasty, harsh)
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APASmart Define. (2016). hard-hearted thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/hard-hearted/thesaurus/synonyms
ChicagoSmart Define. 2016. "hard-hearted thesaurus" https://smartdefine.org/hard-hearted/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, hard-hearted thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hard-hearted/thesaurus/synonyms>.
MLASmart Define. "hard-hearted thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/hard-hearted/thesaurus/synonyms>