118 entries under severe topic. ×

3
mean(adjective, clear, hard, tough)
3
mortal(adjective, mean, harsh, cruel)
3
serious(adjective, strong, hard, tough)
3
tyrannical(adjective, hard, tough, harsh)
3
unbreakable(adjective, strong, hard, tough)
3
unmerciful(adjective, mean, hard, tough)
3
unsparing(adjective, mean, strong, hard, tough)
2
challenging(adjective, tough, painful, problematic)
2
dedicated(adjective, clear, tough, determined)
2
dog-eat-dog(adjective, mean, harsh, cruel)
2
fierce(adjective, mean, clear, hard, tough)
2
oppressive(adjective, hard, difficult, laborious)
2
savage(adjective, mean, hard, tough)
2
titanic(tough, painful, problematic, trying)
2
unpitying(adjective, mean, harsh, cruel)
1
ambitious(tough, painful, problematic, trying)
1
arduous(adjective, hard, tough, grim)
1
backbreaker(tough, painful, problematic, trying)
1
barbarous(adjective, appearance, mean, hard, tough)
1
bothersome(tough, painful, problematic, trying)
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APASmart Define. (2016). unyielding thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unyielding/thesaurus/synonyms
ChicagoSmart Define. 2016. "unyielding thesaurus" https://smartdefine.org/unyielding/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, unyielding thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unyielding/thesaurus/synonyms>.
MLASmart Define. "unyielding thesaurus" 10 March 2016. Web. 29 September 2026. <https://smartdefine.org/unyielding/thesaurus/synonyms>