143 entries under inflexible topic. ×

6
buckram(adjective, hard, firm, solid, stiff)
6
close-minded
6
dense(adjective, set, strong, hard, tough)
6
frozen(adjective, hard, firm, solid, fixed)
6
headstrong(adjective, tough, firm, unreasonable)
6
indurate(adjective, mean, hard, firm, determined)
6
persevering(adjective, tough, firm, determined, unreasonable)
6
stark(adjective, hard, severe, firm, solid)
6
unadaptable(adjective, set, hard, stiff, resolute)
6
wooden(adjective, hard, correct, firm, solid)
5
hardened(adjective, strong, hard, tough, firm)
5
normal(adjective, usual, straight, standard, even)
5
starchy(adjective, hard, firm, solid, stiff)
5
sturdy(adjective, close, set, strong, hard)
4
compact(adjective, close, set, strong, hard)
4
compressed(adjective, set, strong, hard, tough)
4
even(adjective, fixed, reliable, consistent)
4
hard-hearted(adjective, mean, hard, harsh)
4
secure(adjective, tight, stubborn, immovable)
4
starched(adjective, hard, firm, solid, stiff)
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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>