101 entries under vicious topic. ×

7
inhuman(adjective, animal, mean, hard, tough)
7
rough(adjective, strong, hard, tough, severe)
6
mortal(adjective, mean, severe, harsh, cruel)
6
unsympathetic(adjective, animal, mean, hard, tough)
5
stony(adjective, mean, hard, harsh, cruel)
5
unbroken(adjective, violent, fierce, persistent)
4
barbarous(adjective, animal, appearance, mean, hard)
4
bitter(adjective, strong, hard, tough, severe)
4
brutal(adjective, mean, hard, tough, severe)
4
callous(adjective, mean, hard, tough, severe)
4
fell(adjective, animal, mean, harsh, violent)
4
flinty(adjective, close, strong, hard, tough)
4
hard-hearted(adjective, mean, hard, tough, evil)
4
heartless(adjective, mean, severe, evil, nasty)
4
uncompassionate(adjective, animal, mean, hard, tough)
4
unfeeling(adjective, animal, mean, hard, tough)
3
brutish(adjective, evil, nasty, harsh, violent)
3
fierce(adjective, animal, mean, hard, tough)
3
rude(adjective, hard, severe, sharp, nasty)
2
barbaric(adjective, animal, mean, violent, cruel)
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APASmart Define. (2015). unrelenting thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unrelenting/thesaurus/synonyms
ChicagoSmart Define. 2015. "unrelenting thesaurus" https://smartdefine.org/unrelenting/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unrelenting thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unrelenting/thesaurus/synonyms>.
MLASmart Define. "unrelenting thesaurus" 3 August 2015. Web. 28 September 2026. <https://smartdefine.org/unrelenting/thesaurus/synonyms>