2
inconsiderate
2
malicious(adjective, mean, hateful, spiteful, reactive)
2
mean(adjective, hard, severe, harsh, violent)
2
mortal(adjective, mean, severe, harsh, cruel)
2
murderous(adjective, hard, tough, harsh, cruel)
2
obstinate(adjective, determined, resolute, uncompromising, unshakeable)
2
persistent
2
resentful(adjective, mean, hateful, malicious, spiteful)
2
retaliatory(adjective, mean, hateful, malicious, spiteful)
2
rude
2
steely
2
stiff(adjective, hard, rough, harsh, cruel)
2
stiff-necked(adjective, determined, resolute, uncompromising, unshakeable)
2
tyrannical(adjective, hard, tough, harsh, cruel)
2
ungenerous(mean, unkind)
2
unresponsive(adjective, person, feelings, emotions, rocky)
2
unsympathizing(mean, unkind)
2
violent(adjective, hard, severe, rough, harsh)
1
acrimonious
1
apathetic(adjective, person, feelings, emotions)
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APASmart Define. (2016). unforgiving thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unforgiving/thesaurus/synonyms
ChicagoSmart Define. 2016. "unforgiving thesaurus" https://smartdefine.org/unforgiving/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, unforgiving thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unforgiving/thesaurus/synonyms>.
MLASmart Define. "unforgiving thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/unforgiving/thesaurus/synonyms>