48 entries under stubborn topic. ×

13
stony(adjective, firm, stiff, rigid)
12
iron(adjective, set, strong, hard, tough)
10
stiff(adjective, set, firm, harsh, determined)
9
rocky(adjective, set, firm, stiff, compact)
9
uncompliant(adjective, tough, firm, resist, determined)
8
incompliant(adjective, resist, determined, resolute, persistent)
8
obstinate(adjective, cruel, determined, resolute, pitiless)
8
set(adjective, severe, firm, harsh, determined)
7
hardheaded(adjective, strong, hard, tough, firm)
7
remorseless(adjective, resist, determined, resolute, persistent)
7
unbendable(adjective, resist, determined, resolute, persistent)
6
mulish(adjective, strong, hard, tough, firm)
6
pigheaded(adjective, tough, determined, resolute)
6
stiff-necked(adjective, strong, hard, tough, firm)
6
hard-nosed(adjective, strong, hard, tough, determined)
6
hardened(adjective, strong, firm, determined, stiff)
6
opinionated(adjective, determined, resolute, uncompromising)
6
steadfast(adjective, tough, firm, determined, resolute)
5
rigorous(adjective, set, strong, hard, tough)
4
bullheaded(adjective, strong, hard, tough, severe)
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APASmart Define. (2015). adamantine thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/adamantine/thesaurus/synonyms
ChicagoSmart Define. 2015. "adamantine thesaurus" https://smartdefine.org/adamantine/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, adamantine thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/adamantine/thesaurus/synonyms>.
MLASmart Define. "adamantine thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/adamantine/thesaurus/synonyms>