23 entries under stiff topic. ×

2
arthritic(adjective, hard, firm, solid)
2
buckram(adjective, hard, firm, solid)
2
creaky(adjective, hard, firm, solid)
2
steely(adjective, hard, firm, solid)
2
stiff as a board(expression, idiom, firm, solid)
2
unsupple(adjective, hard, firm, solid)
1
hard(adjective, firm, solid, rigid)
1
hard as nails(expression, adjective, idiom, tough, firm)
1
hardened(adjective, hard, firm, solid)
1
immalleable(adjective, hard, firm, solid)
1
impliable(adjective, hard, firm, solid)
1
indurate(adjective, hard, firm, solid)
1
rheumatic(adjective, hard, firm, solid)
1
set(adjective, hard, firm, solid)
1
set in stone(expression, adjective, idiom, tough, firm)
1
solid(adjective, hard, firm, tense)
1
starched(adjective, hard, firm, solid)
1
stony(adjective, hard, firm, solid)
1
taut(adjective, hard, firm, solid)
1
tense(adjective, hard, firm, solid)
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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>