207 entries under adjective topic. ×

7
unshakable(tough, firm, determined, resolute)
6
bigoted(determined, resolute, obstinate, uncompromising)
6
contrary(difficult, determined, awkward, resolute)
6
dour
6
fixed(tough, firm, determined, resolute)
6
immovable(difficult, determined, resolute, obstinate)
6
self-willed(tough, firm, difficult, determined)
6
set(determined, resolute, obstinate, uncompromising)
6
strong-willed
6
unbending(tough, determined, resolute, obstinate)
6
unflagging(strong, firm, energetic, determined)
6
unswerving(strong, tough, firm, determined)
5
bull-headed(determined, resolute, obstinate, stubborn)
5
importunate(demanding, insistent)
5
industrious
5
inexorable(tough, determined, resolute, obstinate)
5
pat(difficult, determined, resolute, obstinate)
5
sedulous
5
staunch(strong, tough, firm, determined)
5
stiff(determined, resolute, persistent, obstinate)
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APASmart Define. (2015). pertinacious thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/pertinacious/thesaurus/synonyms
ChicagoSmart Define. 2015. "pertinacious thesaurus" https://smartdefine.org/pertinacious/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, pertinacious thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/pertinacious/thesaurus/synonyms>.
MLASmart Define. "pertinacious thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/pertinacious/thesaurus/synonyms>