145 entries under strong topic. ×

9
cruel(adjective, appearance, mean, hard)
9
unchangeable(adjective, hard, steady, resolute)
8
persevering(adjective, tough, flat, firm)
7
sturdy(adjective, set, hard, sound)
7
unfaltering(adjective, firm, intense, certain)
6
austere(adjective, appearance, hard, tough)
6
authoritarian(adjective, hard, tough, severe)
6
stalwart(adjective, hard, sound, tough)
5
dense(adjective, set, hard, tough)
5
hard-core(adjective, hard, tough, firm)
5
hard-line(adjective, hard, tough, severe)
5
loyal(adjective, firm, determined, bold)
5
rugged(adjective, hard, sound, tough)
5
true(adjective, tough, flat, firm)
4
stark(adjective, hard, sound, tough)
4
sure(adjective, tough, flat, firm)
4
unshaken(adjective, firm, cold, indifferent)
3
definite(adjective, severe, flat, firm)
3
forbidding(adjective, appearance, hard, tough)
3
heavy(adjective, hard, sound, tough)
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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>