74 entries under adjective topic. ×

4
stiff(hard, tough, firm, rigid)
2
arthritic(hard, firm, solid, stiff)
2
buckram(hard, firm, solid, stiff)
2
creaky(hard, firm, solid, stiff)
2
inductile(rigid, inflexible)
2
inelastic(hard, tough, firm, solid)
2
inextensible(rigid, inflexible)
2
inflexible(hard, tough, firm, solid)
2
intractable(tough, firm, fixed, distant)
2
rigid(hard, tough, firm, solid)
2
steely(hard, firm, solid, stiff)
2
unbending(hard, firm, solid, rigid)
2
unsupple(hard, firm, solid, stiff)
2
unyielding(hard, tough, firm, solid)
1
annealed(hard, firm, solid, tense)
1
benumbed(hard, firm, solid, tense)
1
brittle(hard, firm, solid, tense)
1
cemented(hard, firm, solid, tense)
1
chilled(hard, firm, solid, tense)
1
congealed(hard, firm, solid, tense)
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APASmart Define. (2015). unflexible thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unflexible/thesaurus/synonyms
ChicagoSmart Define. 2015. "unflexible thesaurus" https://smartdefine.org/unflexible/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, unflexible thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unflexible/thesaurus/synonyms>.
MLASmart Define. "unflexible thesaurus" 9 December 2015. Web. 27 September 2026. <https://smartdefine.org/unflexible/thesaurus/synonyms>