67 entries under determined topic. ×

1
resistant(adjective, resolute, obstinate, uncompromising)
1
set in stone(adjective, resolute, obstinate, uncompromising)
1
single-minded(tough, firm, unreasonable, grim)
1
standing pat(adjective, resolute, obstinate, uncompromising)
1
unappeasable(adjective, resolute, uncompromising, unshakeable)
1
unforgiving(adjective, resolute, uncompromising, unshakeable)
1
unswayable(adjective, resolute, obstinate, uncompromising)
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APASmart Define. (2015). hardheaded thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/hardheaded/thesaurus/synonyms
ChicagoSmart Define. 2015. "hardheaded thesaurus" https://smartdefine.org/hardheaded/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, hardheaded thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/hardheaded/thesaurus/synonyms>.
MLASmart Define. "hardheaded thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/hardheaded/thesaurus/synonyms>