118 entries under stubborn topic. ×

7
recalcitrant(adjective, tough, firm, unreasonable, grim)
7
remorseless(adjective, mean, tough, harsh, resist)
7
resolved(adjective, strong, flat, firm, certain)
7
single-minded(adjective, tough, harsh, cruel, determined)
7
unchangeable(adjective, strong, secure, flat, certain)
7
uncompliant(adjective, tough, firm, resist, determined)
6
persevering(adjective, strong, tough, flat, firm)
6
set in stone(expression, adjective, idiom, mean, hard)
5
bullheaded(adjective, strong, hard, tough, firm)
5
immutable(adjective, hard, firm, fixed, inflexible)
5
incompliant(adjective, resist, determined, resolute, persistent)
5
unalterable(adjective, strong, hard, secure, severe)
5
unfaltering(adjective, strong, firm, resolute, persistent)
5
unflinching(adjective, strong, flat, firm, harsh)
5
unswerving(adjective, strong, tough, firm, determined)
5
unsympathetic(adjective, mean, hard, tough, harsh)
5
willful(adjective, tough, determined, resolute, obstinate)
4
hanging tough(expression, adjective, mean, hard, determined)
4
hard-boiled(adjective, person, mean, strong, hard)
4
hard-hearted(adjective, mean, hard, tough, harsh)
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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>