Synonyms|659Antonyms|108|Broader|7Narrower|0Related|670
4
numb(adjective, hard, tough, severe, cold)
4
persevering(adjective, resolute)
4
rancorous(adjective, mean, evil, nasty, harsh)
4
set(adjective, resolute)
4
truculent(adjective, animal, appearance, mean, harsh)
4
unappeasable(adjective, mean, severe, harsh, cruel)
4
uncaring(adjective, hard, tough, severe, harsh)
4
violent(adjective, hard, rough, nasty, harsh)
3
stubborn(adjective, appearance, strong, hard, severe)
3
Draconian
3
austere(adjective, appearance, mean, strong, hard)
3
bowelless
3
bullheaded(adjective, resolute)
3
carnal(adjective, brutal)
3
committed(adjective, resolute)
3
compassionless(adjective, mean, hard, severe, harsh)
3
courageous(adjective, resolute)
3
crooked
3
dauntless(adjective, resolute)
3
deadly
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APASmart Define. (2016). ruthless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/ruthless/thesaurus/synonyms
ChicagoSmart Define. 2016. "ruthless thesaurus" https://smartdefine.org/ruthless/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, ruthless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/ruthless/thesaurus/synonyms>.
MLASmart Define. "ruthless thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/ruthless/thesaurus/synonyms>