170 entries under firm topic. ×

1
rheumatic(adjective, hard, solid, stiff)
1
stand pat(expression, adjective, strong, hard, secure)
1
starchy(adjective, hard, solid, stiff)
1
steeled(adjective, set, strong, hard)
1
stiff as a board(expression, adjective, idiom, hard)
1
thickened(adjective, hard, solid, stiff)
1
ungraceful(adjective, hard, solid, stiff)
1
unreasonable(tough, inflexible, obstinate, stubborn)
1
unsupple(adjective, hard, solid, stiff)
1
wooden(adjective, hard, solid, stiff)
0
arthritic(adjective, hard, solid, stiff)
0
caked(adjective, set, solid, hardened)
0
calcified(adjective, set, solid, hardened)
0
compacted(adjective, hard, stiff, compact)
0
conglomerated(adjective, set, solid, hardened)
0
cussed(tough, inflexible, obstinate, stubborn)
0
dried(adjective, set, solid, hardened)
0
hardened inflexible(expression, solid, stiff, inflexible)
0
incompressible
0
located(adjective, solid, stiff, rigid)
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APASmart Define. (2016). unyielding thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unyielding/thesaurus/synonyms
ChicagoSmart Define. 2016. "unyielding thesaurus" https://smartdefine.org/unyielding/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, unyielding thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unyielding/thesaurus/synonyms>.
MLASmart Define. "unyielding thesaurus" 10 March 2016. Web. 30 September 2026. <https://smartdefine.org/unyielding/thesaurus/synonyms>