150 entries under inflexible topic. ×

2
contumacious(adjective, tough, firm, determined, unreasonable)
2
dead set on(expression, adjective, idiom, strong, secure)
2
hardened(adjective, set, hard, complete, firm)
2
incompliant(adjective, hard, firm, solid, stiff)
2
level(adjective, mild, certain, ordinary, usual)
2
never-failing(adjective, set, clear, strong, flat)
2
petrified(adjective, calm, quiet, strong, hard)
2
self-willed(adjective, tough, firm, determined)
2
solidified(adjective, set, hard, firm, solid)
2
stark(adjective, strong, hard, sound, tough)
2
stated(noun, adjective, strong, flat, firm)
2
stipulated(adjective, strong, flat, firm, certain)
2
taut(adjective, strong, hard, secure, rough)
2
tense(adjective, hard, firm, solid, stiff)
2
thickened(adjective, set, strong, firm, solid)
2
willful(adjective, deliberate, determined, careful, thoughtful)
1
annealed(adjective, hard, firm, solid, stiff)
1
arthritic(adjective, hard, firm, solid, stiff)
1
balky(tough, firm, unreasonable, obstinate)
1
benumbed(verb, adjective, hard, firm, solid)
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APASmart Define. (2016). fixed thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/fixed/thesaurus/synonyms
ChicagoSmart Define. 2016. "fixed thesaurus" https://smartdefine.org/fixed/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, fixed thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/fixed/thesaurus/synonyms>.
MLASmart Define. "fixed thesaurus" 16 March 2016. Web. 27 September 2026. <https://smartdefine.org/fixed/thesaurus/synonyms>