497 entries under adjective topic. ×

8
dour(close, hard, tough, severe)
8
granitic
8
hardhearted(hard, attitude, careless, cold)
8
resistant(hard, determined, resolute, unfeeling)
8
ruthless(mean, hard, tough, severe)
7
bigoted(determined, resolute, obstinate, uncompromising)
7
brassbound(resist, determined, resolute, persistent)
7
bull-headed(determined, resolute, obstinate, stubborn)
7
bullheaded(strong, hard, tough, deliberate)
7
die-hard(resist, determined, resolute, persistent)
7
dogmatic(determined, fixed, hateful, rigid)
7
hanging tough(determined, resolute, stubborn, uncompromising)
7
impenitent(hard, tough, harsh, careless)
7
insensitive(mean, hard, cool, tough)
7
persevering(strong, tough, flat, firm)
7
pig-headed(determined, resolute, obstinate, stubborn)
7
self-willed(tough, firm, difficult, determined)
7
thick-skinned(hard, tough, severe, harsh)
7
unemotional(mean, hard, cool, tough)
7
unswerving(strong, tough, firm, determined)
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APASmart Define. (2016). obdurate thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/obdurate/thesaurus/synonyms
ChicagoSmart Define. 2016. "obdurate thesaurus" https://smartdefine.org/obdurate/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, obdurate thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/obdurate/thesaurus/synonyms>.
MLASmart Define. "obdurate thesaurus" 23 March 2016. Web. 26 September 2026. <https://smartdefine.org/obdurate/thesaurus/synonyms>