66 entries under inflexible topic. ×

9
pat(adjective, difficult, wild, determined, usual)
9
tenacious(adjective, strong, secure, firm, solid)
8
persistent(adjective, determined, stable, fixed, resolute)
8
resolved(adjective, determined, usual, fixed, resolute)
8
unmoved(adjective, calm, cool, firm, determined)
7
pigheaded(adjective, mean, hard, determined, usual)
6
iron(adjective, mean, strong, hard, tough)
6
stiff-necked(adjective, mean, strong, hard, tough)
5
hardheaded(adjective, strong, hard, tough, determined)
5
perverse(adjective, mean, hard, wild, determined)
5
still(adjective, secure, rigid, passive)
5
unflinching(adjective, determined, fixed, resolute, persistent)
4
opinionated(adjective, determined, fixed, resolute)
4
persevering(adjective, determined, steady, resolute, persistent)
4
quiet(secure, still, rigid, stubborn)
4
tough(adjective, mean, strong, hard, determined)
3
bullheaded(adjective, strong, hard, tough, difficult)
3
contumacious(adjective, determined, fixed, obstinate)
3
rebellious(adjective, obstinate, willful)
2
balky(adjective, obstinate, obstinacy, willful)
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APASmart Define. (2015). immovable thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/immovable/thesaurus/synonyms
ChicagoSmart Define. 2015. "immovable thesaurus" https://smartdefine.org/immovable/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, immovable thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/immovable/thesaurus/synonyms>.
MLASmart Define. "immovable thesaurus" 3 August 2015. Web. 29 September 2026. <https://smartdefine.org/immovable/thesaurus/synonyms>