134 entries under adjective topic. ×

3
stationary(firmness, hardness, solidity, sturdiness)
3
steely(firmness, hardness, solidity, sturdiness)
3
stiff(firmness, hardness, solidity, sturdiness)
3
stone(firmness, hardness, solidity, sturdiness)
3
unaffected(firmness, hardness, solidity, sturdiness)
3
unalterable(firmness, hardness, solidity, sturdiness)
3
unbending(firmness, hardness, solidity, sturdiness)
3
unchangeable(firmness, hardness, solidity, sturdiness)
3
unextendible(firmness, hardness, solidity, sturdiness)
3
unextensible(firmness, hardness, solidity, sturdiness)
3
unflexible(firmness, hardness, solidity, sturdiness)
3
ungiving(firmness, hardness, solidity, sturdiness)
3
unlimber(firmness, hardness, solidity, sturdiness)
3
unmalleable(firmness, hardness, solidity, sturdiness)
3
unmoved(firmness, hardness, solidity, sturdiness)
3
unmoving(firmness, hardness, solidity, sturdiness)
3
unpliable(firmness, hardness, solidity, sturdiness)
3
unpliant(firmness, hardness, solidity, sturdiness)
3
unrelenting(firmness, hardness, solidity, sturdiness)
3
unswayable(firmness, hardness, solidity, sturdiness)
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APASmart Define. (2016). adamant thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/adamant/thesaurus/related
ChicagoSmart Define. 2016. "adamant thesaurus" https://smartdefine.org/adamant/thesaurus/related (accessed September 30, 2026).
HarvardSmart Define 2016, adamant thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/adamant/thesaurus/related>.
MLASmart Define. "adamant thesaurus" 23 March 2016. Web. 30 September 2026. <https://smartdefine.org/adamant/thesaurus/related>