48 entries under rigid topic. ×

16
resolute(adjective, calm, strong, secure, tough)
16
stubborn(adjective, mean, hard, secure, tough)
16
uncompromising(adjective, mean, hard, secure, tough)
13
determined(adjective, firm, solid, usual, steady)
12
inflexible(adjective, mean, hard, secure, tough)
11
hard-nosed(adjective, mean, hard, secure, determined)
11
set(adjective, calm, strong, secure, firm)
10
firm(adjective, calm, set, mean, strong)
10
fixed(adjective, mean, hard, secure, firm)
10
immovable(adjective, mean, hard, secure, firm)
10
inexorable(adjective, mean, hard, tough, firm)
10
unbending(adjective, mean, hard, determined, resolute)
10
unrelenting(adjective, mean, hard, tough, firm)
9
relentless(adjective, mean, hard, tough, firm)
9
standing pat(expression, adjective, tough, firm, determined)
9
unshakable(adjective, mean, hard, secure, firm)
9
unswayable(adjective, tough, firm, determined, distant)
8
obstinate(adjective, mean, hard, tough, firm)
8
unyielding(adjective, set, mean, hard, secure)
7
hanging tough(expression, adjective, mean, hard, determined)
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APASmart Define. (2015). set in stone thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/set_in_stone/thesaurus/synonyms
ChicagoSmart Define. 2015. "set in stone thesaurus" https://smartdefine.org/set_in_stone/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, set in stone thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/set_in_stone/thesaurus/synonyms>.
MLASmart Define. "set in stone thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/set_in_stone/thesaurus/synonyms>