187 entries under adjective topic. ×

1
beastly
1
brute
1
closed
1
disagreeable
1
extreme
1
fell(violent, cruel, vicious, fierce)
1
forbidding(hard, tough, harsh, cruel)
1
frightful(violent, cruel, vicious, fierce)
1
gory
1
gratuitous(mean, severe, harsh, cruel)
1
grim(mean, hard, tough, severe)
1
hard-bitten(hard, tough, harsh, cruel)
1
hatchet job(expression, mean, severe, harsh)
1
having a killer instinct(expression, idiom, mean, severe)
1
hostile
1
impenitent(hard, tough, harsh, cruel)
1
indifferent
1
inflexible
1
inhospitable
1
intolerant(hard, tough, harsh, cruel)
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APASmart Define. (2016). unmerciful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unmerciful/thesaurus/synonyms
ChicagoSmart Define. 2016. "unmerciful thesaurus" https://smartdefine.org/unmerciful/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, unmerciful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unmerciful/thesaurus/synonyms>.
MLASmart Define. "unmerciful thesaurus" 31 March 2016. Web. 27 September 2026. <https://smartdefine.org/unmerciful/thesaurus/synonyms>