74 entries under stubborn topic. ×

1
contumacious(tough, firm, unreasonable, grim, inflexible)
1
cussed(tough, firm, unreasonable, grim, inflexible)
1
hard-boiled(adjective, mean, hard, tough, harsh)
1
hard-hearted(adjective, mean, hard, tough, harsh)
1
harsh(adjective, mean, hard, tough, inflexible)
1
headstrong(adjective, tough, firm, unreasonable, grim)
1
implacable(adjective, mean, hard, tough, firm)
1
indurate(adjective, mean, hard, tough, harsh)
1
insubordinate(tough, firm, unreasonable, grim, inflexible)
1
intractable(adjective, tough, firm, unreasonable, grim)
1
iron(adjective, mean, strong, hard, tough)
1
mean(adjective, hard, tough, harsh, inflexible)
1
opinionated(tough, firm, unreasonable, grim, inflexible)
1
ornery(tough, firm, unreasonable, grim, inflexible)
1
perverse(adjective, mean, hard, tough, firm)
1
pigheaded(adjective, mean, hard, tough, firm)
1
rebellious(tough, firm, unreasonable, grim, inflexible)
1
recalcitrant(tough, firm, unreasonable, grim, inflexible)
1
rooted(adjective, strong, hard, secure, solid)
1
self-willed(tough, firm, unreasonable, grim, inflexible)
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APASmart Define. (2015). unshakable thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unshakable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unshakable thesaurus" https://smartdefine.org/unshakable/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unshakable thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unshakable/thesaurus/synonyms>.
MLASmart Define. "unshakable thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/unshakable/thesaurus/synonyms>