Synonyms|248Antonyms|89|Broader|5Narrower|0Related|187

73 entries under pitiless topic. ×

4
demoniac
4
obdurate(adjective, mean, hard, tough, harsh)
3
stony(adjective, mean, harsh, cruel, vicious)
3
tough(adjective, hard, harsh, cruel, grim)
2
compassionless(adjective, mean, hard, severe, harsh)
2
feral(adjective, mean, harsh, violent, cruel)
2
fiendish
2
hellish
2
mortal(adjective, mean, severe, harsh, cruel)
2
rancorous(adjective, mean, harsh, cruel, vicious)
2
sadistic(adjective, mean, harsh, cruel, vicious)
2
uncompromising(adjective, cruel, heartless, hardhearted)
2
vindictive(adjective, mean, hard, tough, severe)
2
violent(adjective, cruel, vicious, fierce, savage)
1
adamant(adjective, mean, harsh, cruel, vicious)
1
gratuitous(adjective, mean, severe, harsh, cruel)
1
grim(adjective, mean, hard, tough, severe)
1
hatchet job(expression, adjective, mean, severe, harsh)
1
having a killer instinct(expression, adjective, idiom, mean, severe)
1
iron-fisted(adjective, mean, severe, harsh, cruel)
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ChicagoSmart Define. 2016. "unmerciful thesaurus" https://smartdefine.org/unmerciful/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, unmerciful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unmerciful/thesaurus/synonyms>.
MLASmart Define. "unmerciful thesaurus" 31 March 2016. Web. 27 September 2026. <https://smartdefine.org/unmerciful/thesaurus/synonyms>