213 entries under hard topic. ×

4
immutable(adjective, firm, steady, fixed)
4
rocklike(adjective, firm, stiff, compact)
4
stark(adjective, strong, sound, tough)
4
tense(adjective, firm, solid, stiff)
3
compact(adjective, close, set, tough)
3
compressed(adjective, set, tough, firm)
3
condensed(adjective, tough, solid, rigid)
3
forbidding(adjective, appearance, strong, tough)
3
hanging tough(expression, adjective, mean, determined)
3
heartless(adjective, mean, severe, harsh)
3
heavy(adjective, strong, sound, tough)
3
impliable(adjective, firm, solid, resolute)
3
insensitive(adjective, tough, harsh, cold)
3
mean(adjective, clear, tough, severe)
3
ossified(adjective, firm, determined, resolute)
3
serious(adjective, strong, tough, severe)
3
solidified(adjective, set, tough, firm)
3
taut(adjective, rough, firm, harsh)
3
tyrannical(adjective, tough, severe, harsh)
3
unbreakable(adjective, strong, tough, severe)
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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>