49 entries under inflexible topic. ×

27
stubborn(adjective, characteristic, quality, strong, hard)
17
mulish(adjective, strong, hard, tough, firm)
16
unyielding(adjective, strong, hard, tough, determined)
14
headstrong(adjective, strong, tough, firm, resist)
14
obstinate(adjective, strong, resist, cold, determined)
11
bullheaded(adjective, strong, hard, tough, resist)
10
pertinacious(adjective, strong, tough, resist, cold)
9
obdurate(adjective, strong, hard, tough, determined)
8
rigid(adjective, strong, hard, tough, determined)
8
stiff-necked(adjective, strong, hard, tough, resist)
6
adamant(adjective, strong, hard, tough, determined)
6
inexorable(adjective, strong, hard, tough, determined)
6
relentless(adjective, strong, hard, tough, cold)
6
unbending(adjective, strong, hard, tough, determined)
5
immovable(adjective, strong, hard, tough, determined)
5
intractable(adjective, strong, tough, firm, cold)
5
set(adjective, determined, resolute, obstinate)
5
stiff(adjective, determined, resolute, obstinate)
4
balky(tough, firm, unreasonable, grim)
4
hidebound(adjective, determined, resolute, obstinate)
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APASmart Define. (2015). hardheaded thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/hardheaded/thesaurus/synonyms
ChicagoSmart Define. 2015. "hardheaded thesaurus" https://smartdefine.org/hardheaded/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, hardheaded thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/hardheaded/thesaurus/synonyms>.
MLASmart Define. "hardheaded thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/hardheaded/thesaurus/synonyms>