139 entries under obstinate topic. ×

9
inexorable(adjective, tough, firm, determined, resolute)
9
pigheaded(adjective, tough, firm, difficult, resist)
9
unrelenting(adjective, determined, resolute, uncompromising)
9
unswerving(adjective, strong, firm, determined, steady)
8
contrary(adjective, difficult, wild, determined, awkward)
8
hardheaded(adjective, tough, firm, resist, determined)
8
single-minded(adjective, tough, intense, deliberate, determined)
8
stout(adjective, strong, sound, tough, fit)
8
unshakable(adjective, strong, tough, firm, determined)
7
constant(adjective, strong, tough, flat, firm)
7
enduring(adjective, strong, sound, tough, fit)
7
steady(adjective, strong, sound, secure, tough)
7
tight(adjective, close, strong, hard, free)
7
unbendable(adjective, determined, resolute, uncompromising)
6
hard-nosed(adjective, determined, resolute, uncompromising)
6
intractable(adjective, tough, firm, difficult, persistent)
6
stiff-necked(adjective, tough, firm, resist, unreasonable)
6
unbending(adjective, clear, strong, tough, severe)
5
balky(tough, firm, unreasonable, grim, inflexible)
5
bigoted(adjective, determined, resolute, uncompromising)
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APASmart Define. (2015). tenacious thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/tenacious/thesaurus/synonyms
ChicagoSmart Define. 2015. "tenacious thesaurus" https://smartdefine.org/tenacious/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, tenacious thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/tenacious/thesaurus/synonyms>.
MLASmart Define. "tenacious thesaurus" 6 November 2015. Web. 27 September 2026. <https://smartdefine.org/tenacious/thesaurus/synonyms>