213 entries under hard topic. ×

3
uncompassionate(adjective, mean, tough, harsh)
3
unmerciful(adjective, mean, tough, severe)
3
unsparing(adjective, mean, strong, tough)
3
vigorous(adjective, strong, sound, tough)
2
brittle(adjective, firm, solid, rigid)
2
close(adjective, set, strong, tough)
2
concentrated(adjective, set, tough, firm)
2
congealed(adjective, set, tough, firm)
2
fierce(adjective, mean, clear, tough)
2
frozen(adjective, firm, solid, stiff)
2
hard-boiled(adjective, mean, strong, tough)
2
hardy(adjective, strong, sound, tough)
2
inhuman(adjective, mean, tough, harsh)
2
insensible(adjective, strong, tough, sturdy)
2
oppressive(adjective, severe, difficult, laborious)
2
savage(adjective, mean, tough, severe)
2
secure(adjective, close, strong, sound)
2
sour(adjective, tough, harsh, grim)
2
starched(adjective, firm, solid, stiff)
2
thick(adjective, strong, tough, firm)
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APASmart Define. (2016). unyielding thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unyielding/thesaurus/synonyms
ChicagoSmart Define. 2016. "unyielding thesaurus" https://smartdefine.org/unyielding/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, unyielding thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unyielding/thesaurus/synonyms>.
MLASmart Define. "unyielding thesaurus" 10 March 2016. Web. 30 September 2026. <https://smartdefine.org/unyielding/thesaurus/synonyms>