145 entries under strong topic. ×

17
mulish(adjective, mean, hard, tough)
17
severe(adjective, appearance, mean, clear)
16
grim(adjective, appearance, mean, hard)
15
steely(adjective, hard, tough, firm)
14
iron(adjective, mean, hard, tough)
14
staunch(adjective, clear, sound, tough)
14
unflinching(adjective, mean, severe, flat)
13
bullheaded(adjective, hard, tough, firm)
13
flinty(adjective, hard, tough, severe)
13
harsh(adjective, mean, hard, tough)
13
resolved(adjective, determined, resolute, rigid)
13
solid(adjective, set, hard, sound)
13
stiff-necked(adjective, mean, hard, tough)
12
ruthless(adjective, appearance, mean, hard)
12
unswerving(adjective, tough, firm, determined)
11
strict(adjective, hard, tough, easy)
10
hardheaded(adjective, hard, tough, determined)
10
indomitable(adjective, set, hard, tough)
10
rigorous(adjective, hard, tough, harsh)
10
willful(adjective, tough, firm, violent)
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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>