143 entries under inflexible topic. ×

4
thick(adjective, strong, hard, tough, firm)
3
condensed(adjective, hard, tough, solid)
3
cussed(adjective, severe, firm, unreasonable, grim)
3
graceless(adjective, hard, firm, solid, stiff)
3
impenetrable(adjective, set, strong, hard, tough)
3
located(secure, firm, solid, stiff)
3
monolithic(adjective, even, reliable, consistent)
3
opinionated(adjective, tough, firm, unreasonable)
3
self-willed(adjective, tough, firm, obstinate)
2
anchored(adjective, secure, still, fixed)
2
attached(adjective, secure, stubborn, immovable)
2
brittle(adjective, hard, firm, solid, stiff)
2
concentrated(adjective, set, strong, hard, complete)
2
concrete(adjective, hard, tough, correct, solid)
2
decided(adjective, firm, determined, usual, regular)
2
habitual(adjective, straight, even, constant)
2
immotile(secure, still, fixed, stubborn)
2
impervious(adjective, hard, tough, solid, detached)
2
impliable(adjective, hard, firm, solid, stiff)
2
inalterable(adjective, flexible)
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APASmart Define. (2015). rigid thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/rigid/thesaurus/synonyms
ChicagoSmart Define. 2015. "rigid thesaurus" https://smartdefine.org/rigid/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, rigid thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/rigid/thesaurus/synonyms>.
MLASmart Define. "rigid thesaurus" 3 August 2015. Web. 29 September 2026. <https://smartdefine.org/rigid/thesaurus/synonyms>