211 entries under severe topic. ×

1
heavy(adjective, strong, hard, tough)
1
icy
1
imperial
1
iron-fisted(adjective, mean, harsh, cruel)
1
keen
1
lean
1
malign(adjective, animal, mean, strong)
1
mean machine(expression, adjective, mean, harsh)
1
meticulous
1
monstrous(adjective, evil, nasty, harsh)
1
mortified(adjective, strong, hard, tough)
1
murderous(adjective, strong, hard, tough)
1
piquant
1
powerful(adjective, strong, intense, violent)
1
precise
1
prudish
1
punitive(adjective, hard, sharp, nasty)
1
raw
1
rough(adjective, strong, hard, tough)
1
rude(adjective, hard, sharp, nasty)
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APASmart Define. (2015). relentless thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/relentless/thesaurus/synonyms
ChicagoSmart Define. 2015. "relentless thesaurus" https://smartdefine.org/relentless/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, relentless thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/relentless/thesaurus/synonyms>.
MLASmart Define. "relentless thesaurus" 24 June 2015. Web. 26 September 2026. <https://smartdefine.org/relentless/thesaurus/synonyms>