80 entries under unkind topic. ×

4
monstrous(adjective, severe, nasty, harsh, cruel)
3
demoniac(adjective, nasty, harsh, violent, cruel)
3
hard-boiled(adjective, hard, severe, sharp, nasty)
3
nasty(adjective, hard, severe, sharp, bleak)
3
rancorous(adjective, mean, nasty, harsh, cruel)
3
thick-skinned(adjective, hard, tough, severe, cruel)
2
bleak(adjective, severe, harsh, cruel, brutal)
2
malevolent(adjective, mean, nasty, harsh, violent)
2
malicious(adjective, animal, mean, nasty, harsh)
2
spiteful(adjective, nasty, malicious, merciless)
1
bitter(adjective, hard, severe, sharp, nasty)
1
cold fish(expression, adjective, hard, tough, severe)
1
dour(adjective, close, hard, severe, sharp)
1
hard as nails(expression, adjective, idiom, cruel, vicious)
1
revengeful(adjective, mean, nasty, harsh, cruel)
1
stringent(adjective, hard, severe, harsh, cruel)
1
unpleasant(adjective, hard, severe, sharp, nasty)
1
vengeful(adjective, severe, nasty, harsh, cruel)
1
vindictive(adjective, mean, hard, tough, severe)
1
wicked(adjective, hard, severe, sharp, nasty)
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APASmart Define. (2016). pitiless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/pitiless/thesaurus/synonyms
ChicagoSmart Define. 2016. "pitiless thesaurus" https://smartdefine.org/pitiless/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, pitiless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/pitiless/thesaurus/synonyms>.
MLASmart Define. "pitiless thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/pitiless/thesaurus/synonyms>