67 entries under uncompromising topic. ×

6
steadfast(adjective, tough, firm, determined, resolute)
6
unappeasable(adjective, determined, resolute, unshakeable)
5
dogged(adjective, tough, firm, determined, resolute)
5
insistent(adjective, determined, resolute, unshakeable)
5
ossified(adjective, determined, resolute, unshakeable)
5
rigorous(adjective, set, strong, hard, tough)
5
unshakable(adjective, determined, resolute, unshakeable)
4
bullheaded(adjective, strong, hard, tough, severe)
4
inconvincible(adjective, determined, resolute, unshakeable)
4
pertinacious(adjective, determined, resolute, unshakeable)
4
perverse(adjective, determined, resolute, unshakeable)
4
self-opinionated(adjective, determined, resolute, unshakeable)
4
self-willed(adjective, determined, resolute, unshakeable)
4
wilful(adjective, determined, resolute, unshakeable)
4
willful(adjective, determined, resolute, unshakeable)
3
indurate(adjective, set, firm, determined, stiff)
3
unshakeable(adjective, determined, resolute)
2
resolved(adjective, determined, resolute, unshakeable)
2
strict(adjective, set, strong, hard, tough)
2
unwavering(adjective, determined, resolute, unshakeable)
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APASmart Define. (2015). adamantine thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/adamantine/thesaurus/synonyms
ChicagoSmart Define. 2015. "adamantine thesaurus" https://smartdefine.org/adamantine/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, adamantine thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/adamantine/thesaurus/synonyms>.
MLASmart Define. "adamantine thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/adamantine/thesaurus/synonyms>