102 entries under merciless topic. ×

11
unmerciful(adjective, mean, hard, tough, severe)
10
brutish(adjective, evil, nasty, violent, cruel)
10
inclement(adjective, hard, tough, severe, rough)
10
wicked(adjective, characteristic, mean, wrong, severe)
9
hard-nosed(adjective, characteristic, mean, strong, hard)
9
unbending(adjective, mean, strong, hard, tough)
8
cold(adjective, mean, hard, cool, tough)
8
ferocious(adjective, mean, hard, severe, evil)
7
flinty(adjective, strong, hard, tough, severe)
7
stony(adjective, mean, hard, cool, unpleasant)
7
surly(adjective, mean, tough, rough, low)
6
adamant(adjective, mean, strong, hard, tough)
6
cold-blooded(adjective, mean, hard, cool, tough)
6
evil(adjective, mean, nasty, vicious, wicked)
6
malevolent(adjective, mean, wrong, evil, nasty)
6
monstrous(adjective, great, severe, evil, nasty)
5
atrocious(adjective, evil, nasty, violent, cruel)
5
obstinate(adjective, mean, hard, severe, rough)
5
poignant(adjective, hard, severe, evil, sharp)
4
bestial(adjective, severe, evil, nasty, violent)
10 years ago|60k views|share |citing 
APASmart Define. (2016). harsh thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/harsh/thesaurus/synonyms
ChicagoSmart Define. 2016. "harsh thesaurus" https://smartdefine.org/harsh/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, harsh thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/harsh/thesaurus/synonyms>.
MLASmart Define. "harsh thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/harsh/thesaurus/synonyms>