81 entries under unkind topic. ×

15
bloodthirsty(adjective, severe, evil, nasty, harsh)
15
brutish(adjective, evil, nasty, harsh, rude)
15
implacable(adjective, animal, appearance, mean, hard)
15
inexorable(adjective, appearance, mean, hard, tough)
14
inhumane(adjective, animal, mean, hard, tough)
12
sadistic(adjective, mean, evil, nasty, harsh)
11
grim(adjective, animal, appearance, mean, hard)
11
stern(adjective, appearance, mean, hard, severe)
10
bestial(adjective, animal, mean, severe, evil)
9
cold(adjective, mean, hard, tough, severe)
9
hellish(adjective, evil, nasty, harsh, violent)
9
obdurate(adjective, mean, hard, tough, severe)
8
mean(verb, adjective, animal, hard, severe)
8
monstrous(adjective, severe, evil, nasty, harsh)
7
atrocious(adjective, evil, nasty, harsh, rude)
7
demoniac(adjective, evil, nasty, harsh, violent)
7
tyrannical(adjective, hard, tough, evil, nasty)
7
vindictive(adjective, mean, hard, tough, severe)
6
hard-boiled(adjective, hard, severe, sharp, rough)
6
strict(adjective, hard, rough, harsh, cruel)
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APASmart Define. (2016). ruthless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/ruthless/thesaurus/synonyms
ChicagoSmart Define. 2016. "ruthless thesaurus" https://smartdefine.org/ruthless/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, ruthless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ruthless/thesaurus/synonyms>.
MLASmart Define. "ruthless thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/ruthless/thesaurus/synonyms>