64 entries under uncompromising topic. ×

3
perverse(adjective, mean, hard, tough, firm)
3
pigheaded(adjective, mean, hard, tough, firm)
3
resolved(adjective, determined, resolute, unshakeable)
3
rigorous(adjective, strong, hard, tough, harsh)
3
rock-ribbed(adjective, determined, resolute, unshakeable)
3
strong-willed(adjective, determined, resolute, unshakeable)
3
unshakeable(adjective, determined, resolute)
2
fixed(adjective, mean, hard, tough, firm)
2
hardened(adjective, hard, tough, harsh, cruel)
2
indomitable(adjective, set, strong, hard, tough)
2
opinionated(adjective, determined, resolute, unshakeable)
2
pat(adjective, determined, resolute, unshakeable)
2
self-opinionated(adjective, determined, resolute, unshakeable)
2
single-minded(adjective, tough, firm, harsh, cruel)
2
strict(adjective, set, strong, hard, tough)
2
unswerving(adjective, determined, resolute, unshakeable)
2
willful(adjective, determined, resolute, unshakeable)
1
dead set(adjective, determined, resolute, unshakeable)
1
dyed-in-the-wool(adjective, set, strong, hard, tough)
1
ossified(adjective, determined, resolute, unshakeable)
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APASmart Define. (2016). implacable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/implacable/thesaurus/synonyms
ChicagoSmart Define. 2016. "implacable thesaurus" https://smartdefine.org/implacable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, implacable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/implacable/thesaurus/synonyms>.
MLASmart Define. "implacable thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/implacable/thesaurus/synonyms>