99 entries under unyielding topic. ×

5
true(adjective, strong, smooth, tough, flat)
4
bullheaded(adjective, strong, hard, tough, firm)
4
decided(adjective, firm, certain, resolution, limited)
4
definite(adjective, strong, hard, severe, flat)
4
hard-core(adjective, strong, hard, tough, severe)
4
inhuman(adjective, harsh, cruel, determined, fierce)
3
settled(adjective, strong, flat, firm, certain)
3
strong(adjective, set, hard, tough, flat)
3
sure(adjective, strong, tough, flat, firm)
3
unappeasable(adjective, harsh, cruel, determined, fierce)
3
unfaltering(adjective, strong, firm, certain, limited)
3
ungiving
3
unstoppable(adjective, harsh, cruel, determined, fierce)
2
bound(adjective, strong, tough, flat, firm)
2
dead set on(expression, adjective, idiom, strong, secure)
2
fast(adjective, close, strong, secure, tough)
2
loyal(adjective, strong, firm, determined, bold)
2
mean(adjective, hard, harsh, obstinate, stubborn)
2
rocklike(adjective, firm, stiff, rigid)
2
stalwart(adjective, strong, hard, tough, firm)
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APASmart Define. (2016). inflexible thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/inflexible/thesaurus/synonyms
ChicagoSmart Define. 2016. "inflexible thesaurus" https://smartdefine.org/inflexible/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, inflexible thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/inflexible/thesaurus/synonyms>.
MLASmart Define. "inflexible thesaurus" 24 March 2016. Web. 1 October 2026. <https://smartdefine.org/inflexible/thesaurus/synonyms>