439 entries under adjective topic. ×

11
wanton(mean, cruel, behavior, senseless)
10
hardhearted(mean, hard, cold, cruel)
10
malevolent(mean, evil, nasty, harsh)
10
obdurate(person, mean, hard, tough)
10
spiteful(person, mean, evil, nasty)
10
stern(person, appearance, mean, hard)
10
tough(hard, severe, rough, harsh)
9
dog-eat-dog(mean, hard, harsh, cruel)
9
fiendish(nasty, cruel, vicious, wicked)
9
uncompromising(hard, rough, harsh, cruel)
8
cold(mean, hard, tough, severe)
8
inflexible(person, hard, rough, harsh)
8
murderous(hard, tough, harsh, violent)
8
stony-hearted(cold, cruel, unfeeling, unsympathetic)
8
unfriendly(person, evil, negative, unfeeling)
8
unsparing(mean, severe, rough, difficult)
7
sinister(person, evil, negative, behavior)
7
bloody(hard, tough, harsh, violent)
7
inconsiderate(person, negative, behavior, senseless)
7
malicious(mean, evil, nasty, harsh)
10 years ago|15k views|share |citing 
APASmart Define. (2016). merciless thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/merciless/thesaurus/synonyms
ChicagoSmart Define. 2016. "merciless thesaurus" https://smartdefine.org/merciless/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, merciless thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/merciless/thesaurus/synonyms>.
MLASmart Define. "merciless thesaurus" 31 March 2016. Web. 29 September 2026. <https://smartdefine.org/merciless/thesaurus/synonyms>