112 entries under obstinate topic. ×

7
immutable(adjective, set, hard, regular, fixed)
7
pigheaded(adjective, mean, hard, tough, firm)
6
persevering(adjective, tough, firm, determined, unreasonable)
6
unadaptable(adjective, set, hard, stiff, resolute)
5
bovine(adjective, determined, resolute, uncompromising)
5
brass-bound(adjective, determined, resolute, uncompromising)
5
bull-headed(adjective, determined, resolute, uncompromising)
5
pig-headed(adjective, determined, resolute, uncompromising)
5
staunch(adjective, set, hard, determined, resolute)
4
contumacious(adjective, tough, firm, persistent)
4
indomitable(adjective, strong, hard, tough, resolute)
4
recalcitrant(adjective, tough, firm, persistent)
3
bloody-minded(adjective, persistent, insistent, dogged)
3
confirmed(adjective, proper, determined, usual, regular)
3
cussed(adjective, severe, firm, unreasonable, grim)
3
froward(adjective, persistent, insistent, dogged)
3
hanging(adjective, determined, resolute, uncompromising)
3
hard-shell(adjective, strong, hard, tough, severe)
3
inveterate(adjective, determined, usual, regular, persistent)
3
invincible(adjective, persistent, insistent, dogged)
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APASmart Define. (2015). rigid thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/rigid/thesaurus/synonyms
ChicagoSmart Define. 2015. "rigid thesaurus" https://smartdefine.org/rigid/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, rigid thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/rigid/thesaurus/synonyms>.
MLASmart Define. "rigid thesaurus" 3 August 2015. Web. 28 September 2026. <https://smartdefine.org/rigid/thesaurus/synonyms>