171 entries under cruel topic. ×

1
unemotional(adjective, mean, hard, tough, harsh)
1
unkind(adjective, animal, mean, hard, severe)
1
unmovable(adjective, firm, intense, resolute)
1
unrepenting(adjective, hard, tough, harsh)
1
unrestrained(adjective, violent, vicious, fierce)
1
untamed(adjective, strong, severe, intense, violent)
1
vengeful(adjective, mean, severe, evil, nasty)
1
violent(adjective, strong, severe, difficult, harsh)
1
wanton(adjective, mean, severe, harsh)
1
wicked(adjective, hard, severe, evil, sharp)
1
wild(adjective, strong, severe, difficult, intense)
1
wolfish(adjective, harsh, violent, vicious)
0
cannibalistic(adjective, animal, mean, vicious)
0
extravagant(harsh, merciless, ruthless)
0
fiendish(adjective, animal, mean, vicious)
0
go for broke(adjective, merciless)
0
hang in(adjective, merciless)
0
hurtful(severe, harsh)
0
imperturbable(adjective, cold, unfeeling, unsympathetic)
0
ironfisted(adjective, mean, harsh, vicious)
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APASmart Define. (2015). relentless thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/relentless/thesaurus/synonyms
ChicagoSmart Define. 2015. "relentless thesaurus" https://smartdefine.org/relentless/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, relentless thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/relentless/thesaurus/synonyms>.
MLASmart Define. "relentless thesaurus" 24 June 2015. Web. 29 September 2026. <https://smartdefine.org/relentless/thesaurus/synonyms>