75 entries under tough topic. ×

1
intolerant(adjective, hard, harsh, cold)
1
iron-hearted(adjective, hard, severe, cold)
1
numb(adjective, hard, severe, cold)
1
sensationless(adjective, hard, severe, cold)
1
senseless(adjective, hard, severe, cold)
1
shameless(adjective, hard, harsh, cruel)
1
sour(adjective, hard, severe, harsh)
1
surly(adjective, mean, hard, severe)
1
unamiable(adjective, hard, severe, cold)
1
uncontrite(adjective, hard, harsh, cruel)
1
uncordial(adjective, hard, severe, cold)
1
unregenerate(adjective, hard, harsh, cruel)
1
unremitting(adjective, hard, harsh, grim)
1
unrepenting(adjective, hard, harsh, cruel)
1
vindictive(adjective, mean, hard, severe)
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APASmart Define. (2016). pitiless thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/pitiless/thesaurus/synonyms
ChicagoSmart Define. 2016. "pitiless thesaurus" https://smartdefine.org/pitiless/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, pitiless thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/pitiless/thesaurus/synonyms>.
MLASmart Define. "pitiless thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/pitiless/thesaurus/synonyms>