130 entries under obstinate topic. ×

9
unforgiving(adjective, person, mean, hard, rough)
8
pat(adjective, determined, resolute, unyielding)
8
persistent(adjective, strong, tough, flat, firm)
8
rigorous(adjective, strong, hard, tough, harsh)
8
stiff-necked(adjective, mean, strong, hard, tough)
8
strict(adjective, strong, hard, tough, flat)
7
contrary(adjective, determined, fixed, resolute, persistent)
7
harsh(adjective, mean, strong, hard, tough)
7
recalcitrant(adjective, tough, firm, unreasonable, grim)
7
single-minded(adjective, tough, harsh, cruel, determined)
7
unchangeable(adjective, strong, secure, flat, certain)
7
unswayable(adjective, hard, determined, resolute)
6
callous(adjective, person, mean, hard, rough)
6
hardheaded(adjective, strong, hard, tough, determined)
6
inelastic(adjective, determined, resolute, uncompromising)
6
persevering(adjective, strong, tough, flat, firm)
5
bullheaded(adjective, strong, hard, tough, firm)
5
immutable(adjective, hard, firm, fixed, inflexible)
5
merciless(adjective, person, mean, hard, rough)
5
unalterable(adjective, strong, hard, secure, severe)
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APASmart Define. (2016). adamant thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/adamant/thesaurus/synonyms
ChicagoSmart Define. 2016. "adamant thesaurus" https://smartdefine.org/adamant/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, adamant thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/adamant/thesaurus/synonyms>.
MLASmart Define. "adamant thesaurus" 23 March 2016. Web. 30 September 2026. <https://smartdefine.org/adamant/thesaurus/synonyms>