76 entries under mean topic. ×

7
unyielding(adjective, hard, tough, severe)
6
sadistic(adjective, person, nasty, harsh)
6
stern(adjective, hard, severe, sharp)
6
unsparing(adjective, person, severe, harsh)
5
dog-eat-dog(adjective, hard, severe, care)
5
fiendish(adjective, animal, cruel, vicious)
3
adamant(adjective, harsh, cruel, determined)
3
compassionless(adjective, hard, severe, harsh)
3
rancorous(adjective, nasty, harsh, cruel)
2
devilish(adjective, animal, harsh, violent)
2
diabolical(adjective, animal, harsh, violent)
2
killer(adjective, harsh, cruel, vicious)
2
malevolent(adjective, nasty, harsh, violent)
2
malicious(adjective, animal, nasty, harsh)
2
malign(adjective, animal, cruel, vicious)
2
malignant(adjective, animal, cruel, vicious)
2
mortal(adjective, severe, harsh, cruel)
2
unappeasable(adjective, severe, harsh, cruel)
1
hatchet job(expression, adjective, severe, harsh)
1
having a killer instinct(expression, adjective, idiom, severe)
10 years ago|19k views|share |citing 
APASmart Define. (2016). pitiless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/pitiless/thesaurus/synonyms
ChicagoSmart Define. 2016. "pitiless thesaurus" https://smartdefine.org/pitiless/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, pitiless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/pitiless/thesaurus/synonyms>.
MLASmart Define. "pitiless thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/pitiless/thesaurus/synonyms>