114 entries under harsh topic. ×

5
unbending(adjective, hard, rough, cruel)
5
vengeful(adjective, mean, severe, cruel)
4
barbarous(adjective, mean, hard, tough, severe)
4
cold-blooded(adjective, person, mean, hard)
4
dogged(adjective, cruel, determined, fierce)
4
exacting(adjective, hard, severe, rough)
4
forbidding(adjective, person, hard, tough)
4
hard-hearted(adjective, mean, hard, tough)
4
hardhearted(adjective, mean, hard, severe)
4
sadistic(adjective, person, mean, cruel)
4
unkind(adjective, mean, hard, severe)
3
determined(adjective, cruel, fierce, persistent)
3
fierce(adjective, mean, hard, tough, severe)
3
insensitive(adjective, hard, tough, cruel)
3
intractable(adjective, hard, severe, rough)
3
malevolent(adjective, mean, cruel, vicious)
3
rancorous(adjective, mean, cruel, vicious)
3
strict(adjective, hard, rough, cruel)
3
stringent(adjective, cruel, determined, fierce)
3
vicious(adjective, mean, hard, severe, rough)
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APASmart Define. (2016). unforgiving thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unforgiving/thesaurus/synonyms
ChicagoSmart Define. 2016. "unforgiving thesaurus" https://smartdefine.org/unforgiving/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, unforgiving thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unforgiving/thesaurus/synonyms>.
MLASmart Define. "unforgiving thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/unforgiving/thesaurus/synonyms>