91 entries under stubborn topic. ×

9
relentless(adjective, strong, tough, firm, energetic)
8
persevering(adjective, strong, tough, firm, determined)
8
perverse(adjective, tough, firm, resist, determined)
8
refractory(adjective, tough, firm, difficult, determined)
8
stiff-necked(adjective, tough, firm, resist, determined)
7
deaf(adjective, unwilling)
7
unshakable(adjective, tough, firm, determined, resolute)
6
contrary(adjective, difficult, determined, awkward, resolute)
6
fixed(adjective, tough, firm, determined, resolute)
6
self-willed(adjective, tough, firm, difficult, determined)
6
unswerving(adjective, strong, tough, firm, determined)
5
bull-headed(adjective, determined, resolute, obstinate)
5
staunch(adjective, strong, tough, firm, determined)
4
hard(adjective, sharp, determined, resolute)
4
indomitable(adjective, strong, tough, firm, difficult)
4
pig-headed(adjective, determined, resolute, obstinate)
4
purposeful(adjective, deliberate, determined, resolute, obstinate)
4
resolved(adjective, deliberate, determined, fixed, resolute)
4
restive(adjective, determined, fixed)
4
single-minded(adjective, tough, firm, determined, resolute)
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APASmart Define. (2015). pertinacious thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/pertinacious/thesaurus/synonyms
ChicagoSmart Define. 2015. "pertinacious thesaurus" https://smartdefine.org/pertinacious/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, pertinacious thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/pertinacious/thesaurus/synonyms>.
MLASmart Define. "pertinacious thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/pertinacious/thesaurus/synonyms>