67 entries under determined topic. ×

27
stubborn(adjective, characteristic, quality, strong, hard)
17
mulish(adjective, strong, hard, tough, firm)
16
unyielding(adjective, strong, hard, tough)
15
hard-nosed(adjective, strong, hard, tough)
14
headstrong(adjective, strong, tough, firm, resist)
14
obstinate(adjective, strong, resist, cold)
12
pigheaded(adjective, tough, firm, resist)
11
bullheaded(adjective, strong, hard, tough, resist)
11
inflexible(adjective, strong, hard, tough, cold)
10
dogged(adjective, tough, firm, resist)
10
pertinacious(adjective, strong, tough, resist, cold)
10
willful(adjective, tough, firm, resist)
9
obdurate(adjective, strong, hard, tough)
8
hard(adjective, strong, sound, tough, reasonable)
8
resolute(adjective, obstinate, uncompromising, unshakeable)
8
rigid(adjective, strong, hard, tough)
8
self-willed(tough, firm, resolute, obstinate)
8
stiff-necked(adjective, strong, hard, tough, resist)
8
tenacious(adjective, tough, firm, resist)
8
uncompromising(adjective, resolute, obstinate, unshakeable)
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APASmart Define. (2015). hardheaded thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/hardheaded/thesaurus/synonyms
ChicagoSmart Define. 2015. "hardheaded thesaurus" https://smartdefine.org/hardheaded/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, hardheaded thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/hardheaded/thesaurus/synonyms>.
MLASmart Define. "hardheaded thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/hardheaded/thesaurus/synonyms>