Synonyms|71Antonyms|4|Broader|0Narrower|0Related|289
2
adamant(adjective, determined, resolute, uncompromising, unshakeable)
1
adamantine(adjective, determined, resolute, uncompromising, unshakeable)
1
brassbound(adjective, determined, resolute, uncompromising, unshakeable)
1
craggy
1
crystal
1
crystalline
1
dead set(adjective, determined, resolute, uncompromising, unshakeable)
1
determined(adjective, resolute, uncompromising, unshakeable)
1
dour
1
flinty
1
gravelly
1
gritty
1
hard
1
hard-core
1
immutable
1
incompliant(adjective, determined, resolute, uncompromising, unshakeable)
1
indurate(adjective, determined, resolute, uncompromising, unshakeable)
1
inelastic
1
iron-willed(adjective, determined, resolute, uncompromising, unshakeable)
1
irreconcilable
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APASmart Define. (2015). rock-ribbed thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/rock-ribbed/thesaurus/synonyms
ChicagoSmart Define. 2015. "rock-ribbed thesaurus" https://smartdefine.org/rock-ribbed/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, rock-ribbed thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/rock-ribbed/thesaurus/synonyms>.
MLASmart Define. "rock-ribbed thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/rock-ribbed/thesaurus/synonyms>