95 entries under unkind topic. ×

1
cold-blooded(adjective, tough, evil, nasty, harsh)
1
degenerate(adjective, evil, nasty, harsh, vicious)
1
demoniac(adjective, evil, nasty, harsh, vicious)
1
depraved(adjective, evil, nasty, harsh, vicious)
1
dour(adjective, mean, hard, tough, severe)
1
ferocious(adjective, evil, nasty, harsh, mad)
1
flinty(adjective, strong, hard, tough, evil)
1
hard-boiled(adjective, strong, hard, tough, severe)
1
hard-hearted(adjective, evil, nasty, harsh, vicious)
1
hellish(adjective, evil, nasty, harsh, vicious)
1
implacable(adjective, strong, hard, tough, severe)
1
inexorable(adjective, strong, hard, tough, severe)
1
inhuman(adjective, evil, nasty, harsh, vicious)
1
inhumane(adjective, evil, nasty, harsh, vicious)
1
monstrous(adjective, evil, nasty, harsh, terrible)
1
obdurate(adjective, strong, hard, tough, harsh)
1
pernicious(adjective, mean, evil, nasty, harsh)
1
perverse(adjective, tough, harsh, cruel, grim)
1
pitiless(adjective, hard, severe, sharp, nasty)
1
remorseless(adjective, terrible, cruel, brutal)
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APASmart Define. (2016). bitter thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/bitter/thesaurus/synonyms
ChicagoSmart Define. 2016. "bitter thesaurus" https://smartdefine.org/bitter/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, bitter thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/bitter/thesaurus/synonyms>.
MLASmart Define. "bitter thesaurus" 22 March 2016. Web. 25 September 2026. <https://smartdefine.org/bitter/thesaurus/synonyms>