65 entries under obstinate topic. ×

6
adamant(adjective, strong, hard, tough, determined)
6
inexorable(adjective, strong, hard, tough, determined)
6
intransigent(adjective, determined, resolute, uncompromising)
6
relentless(adjective, strong, hard, tough, cold)
6
unbending(adjective, strong, hard, tough, determined)
5
bigoted(adjective, determined, resolute, uncompromising)
5
immovable(adjective, strong, hard, tough, determined)
5
intractable(adjective, strong, tough, firm, cold)
5
set(adjective, determined, resolute, inflexible)
5
stiff(adjective, determined, resolute, inflexible)
5
unbendable(adjective, determined, resolute, uncompromising)
4
balky(tough, firm, unreasonable, grim, inflexible)
4
contrary(adjective, determined, resolute, uncompromising)
4
determined(adjective, tough, firm, resolute)
4
hidebound(adjective, determined, resolute, inflexible)
4
inelastic(adjective, determined, resolute, uncompromising)
4
pat(adjective, determined, resolute, uncompromising)
4
tough(adjective, strong, hard, determined, unreasonable)
3
bovine(adjective, determined, resolute, uncompromising)
3
brass-bound(adjective, determined, resolute, uncompromising)
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APASmart Define. (2015). hardheaded thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/hardheaded/thesaurus/synonyms
ChicagoSmart Define. 2015. "hardheaded thesaurus" https://smartdefine.org/hardheaded/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, hardheaded thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/hardheaded/thesaurus/synonyms>.
MLASmart Define. "hardheaded thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/hardheaded/thesaurus/synonyms>