100 entries under noun topic. ×

1
depravity(evil, violence, immorality, severity)
1
despotism(violence, severity, torture, cruelty)
1
evilness(immorality, wickedness)
1
ferocity(violence, severity, torture, cruelty)
1
fierceness(violence, severity, torture, cruelty)
1
hard-heartedness(violence, severity, torture, cruelty)
1
hellishness
1
immorality(wickedness, evilness)
1
implacableness(cruelty, malice, meanness, nastiness)
1
inflexibility(ruthlessness, pitilessness, relentlessness)
1
insensibility(violence, severity, torture, cruelty)
1
insensitiveness(violence, severity, torture, cruelty)
1
malignity(violence, severity, torture, cruelty)
1
masochism(violence, severity, torture, cruelty)
1
murderousness(violence, severity, torture, cruelty)
1
obduracy(ruthlessness, pitilessness, relentlessness)
1
obdurateness(ruthlessness, pitilessness, relentlessness)
1
oppression
1
persecution(violence, severity, torture, cruelty)
1
rancor(violence, torture, cruelty, spite)
10 years ago|3.2k views|share |citing 
APASmart Define. (2015). mercilessness thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/mercilessness/thesaurus/synonyms
ChicagoSmart Define. 2015. "mercilessness thesaurus" https://smartdefine.org/mercilessness/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, mercilessness thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/mercilessness/thesaurus/synonyms>.
MLASmart Define. "mercilessness thesaurus" 21 December 2015. Web. 1 October 2026. <https://smartdefine.org/mercilessness/thesaurus/synonyms>