11
firm(noun, adjective, set, clear, solid)
11
resolute(adjective, strong, flat, firm, solid)
9
unwavering(adjective, set, clear, strong, flat)
8
steadfast(adjective, clear, strong, flat, firm)
8
undaunted(adjective, unmoved)
7
unfaltering(adjective, set, clear, strong, firm)
6
constant(adjective, set, clear, strong, flat)
6
immovable(adjective, firm, solid, stable, fixed)
6
steady(adjective, clear, strong, flat, firm)
6
unswerving(adjective, firm, solid, steady, stable)
5
inflexible
5
calm(adjective, firm, solid, cold, indifferent)
5
staunch(adjective, strong, flat, firm, solid)
5
unmoved(adjective, cold, indifferent, unyielding)
5
unshakable(adjective, clear, strong, firm, solid)
4
determined(adjective, strong, flat, firm, solid)
4
fixed(adjective, clear, strong, flat, firm)
4
set(adjective, clear, strong, flat, firm)
4
strong
4
tenacious
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APASmart Define. (2015). unshaken thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unshaken/thesaurus/synonyms
ChicagoSmart Define. 2015. "unshaken thesaurus" https://smartdefine.org/unshaken/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, unshaken thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unshaken/thesaurus/synonyms>.
MLASmart Define. "unshaken thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/unshaken/thesaurus/synonyms>