65 entries under inflexible topic. ×

6
undeviating(adjective, strong, flat, harsh, certain)
5
adamant(adjective, strong, flat, firm, harsh)
5
definite(adjective, strong, flat, firm, certain)
5
immovable(adjective, determined, fixed, resolute, persistent)
5
intent(adjective, strong, flat, certain, determined)
5
intractable(adjective, cruel, determined, fixed, resolute)
5
strong-minded(adjective, determined, resolution, fixed, serious)
5
unchangeable(adjective, strong, flat, certain, determined)
4
certain(adjective, determined, limited, definite)
3
confirmed(adjective, certain, limited, definite)
3
enduring(adjective, strong, flat, certain, determined)
3
inveterate(adjective, certain, limited, definite)
3
obdurate(adjective, strong, flat, harsh, certain)
3
pertinacious(adjective, strong, firm, energetic, determined)
2
dead set on(expression, adjective, idiom, strong, flat)
2
definitive(adjective, certain, resolution, limited, definite)
2
inalterable(adjective, certain, limited, definite)
1
abiding(adjective, strong, flat, certain, determined)
1
agreed(adjective, certain, limited, definite)
1
arranged(adjective, certain, limited, definite)
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APASmart Define. (2015). unflinching thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unflinching/thesaurus/synonyms
ChicagoSmart Define. 2015. "unflinching thesaurus" https://smartdefine.org/unflinching/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unflinching thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unflinching/thesaurus/synonyms>.
MLASmart Define. "unflinching thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/unflinching/thesaurus/synonyms>