71 entries under mean topic. ×

9
inhumane(adjective, hard, tough, severe)
9
savage(adjective, hard, tough, harsh)
9
unsparing(adjective, severe, harsh, cruel)
9
unsympathetic(adjective, severe, harsh, cruel)
8
dog-eat-dog(adjective, severe, harsh, cruel)
8
unrelenting(adjective, hard, tough, severe)
7
ferocious(adjective, harsh, violent, cruel)
7
inexorable(adjective, hard, tough, severe)
7
uncharitable(adjective, unkind, heartless, ungenerous)
7
unyielding(adjective, hard, tough, severe)
6
barbarous(adjective, hard, tough, severe)
6
fierce(adjective, hard, tough, severe)
6
implacable(adjective, hard, tough, severe)
6
inhuman(adjective, hard, tough, harsh)
6
vicious(adjective, harsh, violent, cruel)
5
cold(adjective, harsh, cruel, vicious)
5
severe(adjective, harsh, cruel, vicious)
4
obdurate(adjective, hard, tough, harsh)
4
unsympathizing(adjective, unkind, coldhearted)
3
stony(adjective, harsh, cruel, vicious)
10 years ago|6.5k views|share |citing 
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>