529 entries under adjective topic. ×

13
resolved(strong, determined, resolute, rigid)
13
solid(set, strong, hard, sound)
13
stiff-necked(mean, strong, hard, tough)
13
uncompliant(resist, determined, resolute, obstinate)
12
contrary(determined, resolute, obstinate, stubborn)
12
ruthless(appearance, mean, strong, hard)
12
unswerving(strong, tough, firm, determined)
11
incompliant(tough, firm, resist, determined)
11
pat(tough, determined, resolute, obstinate)
11
recalcitrant(tough, firm, determined, fixed)
11
strict(strong, hard, tough, easy)
11
strong-willed(determined, resolute, uncompromising, unshakeable)
10
hardheaded(strong, hard, tough, determined)
10
hidebound(firm, determined, stiff, resolute)
10
indomitable(set, strong, hard, tough)
10
rigorous(strong, hard, tough, harsh)
10
stony(mean, hard, firm, harsh)
10
willful(strong, tough, firm, violent)
9
cruel(appearance, mean, strong, hard)
9
dour
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APASmart Define. (2016). unyielding thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unyielding/thesaurus/synonyms
ChicagoSmart Define. 2016. "unyielding thesaurus" https://smartdefine.org/unyielding/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, unyielding thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unyielding/thesaurus/synonyms>.
MLASmart Define. "unyielding thesaurus" 10 March 2016. Web. 28 September 2026. <https://smartdefine.org/unyielding/thesaurus/synonyms>