60 entries under viciousness topic. ×

16
ruthlessness(noun, abuse, evil, dislike, violence)
8
brutality(noun, violence, severity, torture, cruelty)
8
inhumanity(noun, violence, severity, torture, cruelty)
5
savagery(noun, violence, severity, torture, cruelty)
4
heartlessness(noun, violence, severity, torture, cruelty)
4
severity(noun, violence, torture, cruelty, coarseness)
3
callousness(noun, violence, severity, torture, cruelty)
2
animality(noun, violence, severity, torture, cruelty)
2
atrocity(noun, cruelty, coldness, callousness)
2
barbarism(noun, violence, severity, torture, cruelty)
2
barbarity(noun, violence, severity, torture, cruelty)
2
bloodthirstiness(noun, violence, severity, torture, cruelty)
2
cold-bloodedness(noun, cruelty, harshness, unkindness, coldness)
2
cruelness(violence, fierceness)
2
fiendishness(noun, violence, severity, torture, cruelty)
2
intensity(violence, fierceness)
2
malice(noun, evil, violence, immorality, wickedness)
2
sadism(noun, violence, severity, torture, cruelty)
2
spite(noun, violence, torture, cruelty, harshness)
2
spitefulness(noun, violence, severity, torture, cruelty)
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APASmart Define. (2015). mercilessness thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/mercilessness/thesaurus/synonyms
ChicagoSmart Define. 2015. "mercilessness thesaurus" https://smartdefine.org/mercilessness/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, mercilessness thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/mercilessness/thesaurus/synonyms>.
MLASmart Define. "mercilessness thesaurus" 21 December 2015. Web. 29 September 2026. <https://smartdefine.org/mercilessness/thesaurus/synonyms>