151 entries under severe topic. ×

2
unpitying(adjective, mean, harsh, cruel)
2
vindictive(adjective, mean, hard, tough)
1
acrid(adjective, hard, sharp, flat)
1
asperous(adjective, hard, sharp, flat)
1
bloodthirsty(adjective, evil, nasty, harsh)
1
by the book(expression, adjective, idiom, strong, hard)
1
cacophonous(adjective, hard, sharp, flat)
1
caterwauling(adjective, hard, sharp, flat)
1
clashing(adjective, hard, sharp, flat)
1
coarse(adjective, hard, sharp, flat)
1
compassionless(adjective, mean, hard, harsh)
1
cracked(adjective, hard, sharp, flat)
1
craggy(adjective, hard, sharp, flat)
1
creaking(adjective, hard, sharp, flat)
1
croaking(adjective, hard, sharp, flat)
1
cussed(adjective, hard, tough, firm)
1
cutthroat(adjective, mean, harsh, cruel)
1
disagreeing(adjective, hard, sharp, flat)
1
disciplinary(adjective, strong, hard, tough)
1
discordant(adjective, hard, sharp, flat)
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APASmart Define. (2015). unrelenting thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unrelenting/thesaurus/synonyms
ChicagoSmart Define. 2015. "unrelenting thesaurus" https://smartdefine.org/unrelenting/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unrelenting thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unrelenting/thesaurus/synonyms>.
MLASmart Define. "unrelenting thesaurus" 3 August 2015. Web. 28 September 2026. <https://smartdefine.org/unrelenting/thesaurus/synonyms>