74 entries under stubborn topic. ×

7
pertinacious(adjective, tough, firm, determined, resolute)
7
solid(adjective, strong, hard, secure, tough)
7
stable(adjective, strong, hard, secure, continue)
6
strong(adjective, strong, hard, secure, tough)
5
fast(adjective, strong, secure, steady, substantial)
5
mulish(adjective, mean, strong, hard, tough)
5
secure(adjective, strong, hard, continue, solid)
5
sturdy(adjective, strong, hard, tough, continue)
4
tough(adjective, mean, strong, hard, firm)
3
hard(adjective, mean, strong, tough, harsh)
2
balky(tough, firm, unreasonable, grim, inflexible)
2
hardheaded(tough, firm, determined, resolute, obstinate)
2
persevering(adjective, strong, tough, firm, determined)
2
refractory(adjective, tough, firm, unreasonable, grim)
2
single-minded(adjective, tough, firm, solid, determined)
2
tight(adjective, strong, hard, secure, tough)
1
bullhead(adjective, mean, hard, tough, harsh)
1
bullheaded(tough, firm, determined, unreasonable, grim)
1
cantankerous(tough, firm, unreasonable, grim, inflexible)
1
cold fish(expression, adjective, mean, hard)
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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>