63 entries under unkind topic. ×

46
cruel(adjective, appearance, mean, hard, tough)
42
ruthless(adjective, appearance, mean, hard, tough)
37
pitiless(adjective, mean, hard, kind, tough)
30
unmerciful(adjective, mean, hard, kind, tough)
29
brutal(adjective, mean, hard, tough, severe)
29
unfeeling(adjective, mean, hard, severe, evil)
27
heartless(adjective, mean, feeling, hard, tough)
24
uncompassionate(adjective, person, mean, hard, tough)
23
harsh(adjective, mean, hard, tough, severe)
23
inhuman(adjective, animal, mean, hard, tough)
21
callous(adjective, person, mean, hard, tough)
21
hard(adjective, mean, tough, severe, evil)
20
inhumane(adjective, mean, hard, tough, severe)
18
barbarous(adjective, appearance, mean, hard, tough)
18
unforgiving(adjective, person, mean, hard, tough)
18
unrelenting(adjective, appearance, mean, hard, tough)
17
hard-hearted(adjective, mean, hard, tough, severe)
15
vicious(adjective, mean, hard, evil, rough)
14
cold-blooded(adjective, person, mean, hard, tough)
14
ferocious(adjective, mean, hard, evil, rough)
10 years ago|15k views|share |citing 
APASmart Define. (2016). merciless thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/merciless/thesaurus/synonyms
ChicagoSmart Define. 2016. "merciless thesaurus" https://smartdefine.org/merciless/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, merciless thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/merciless/thesaurus/synonyms>.
MLASmart Define. "merciless thesaurus" 31 March 2016. Web. 26 September 2026. <https://smartdefine.org/merciless/thesaurus/synonyms>