Synonyms|659Antonyms|108|Broader|7Narrower|0Related|670
3
decided(adjective, resolute)
3
devilish(adjective, animal, mean, harsh, violent)
3
diabolical(adjective, animal, mean, harsh, violent)
3
emotionless(adjective, insensitive)
3
fearless(adjective, resolute)
3
ghoulish
3
grisly(adjective, appearance, terrible, hopeless)
3
gruesome(adjective, appearance, terrible, hopeless)
3
headstrong(adjective, resolute)
3
homicidal
3
horrible(adjective, mean, vicious, spiteful)
3
indefatigable(adjective, resolute)
3
insistent(adjective, resolute)
3
intractable(adjective, appearance, hard, severe, rough)
3
iron-willed(adjective, resolute)
3
nonchalant(adjective, insensitive)
3
objective(adjective, insensitive)
3
passionless(adjective, insensitive)
3
passive(adjective, insensitive)
3
persistent(adjective, resolute)
For more, visit Ruthless on Power Thesaurus
10 years ago|25k views|share |citing 
APASmart Define. (2016). ruthless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/ruthless/thesaurus/synonyms
ChicagoSmart Define. 2016. "ruthless thesaurus" https://smartdefine.org/ruthless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, ruthless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/ruthless/thesaurus/synonyms>.
MLASmart Define. "ruthless thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/ruthless/thesaurus/synonyms>