20
firm(adjective, determined, resolute, uncompromising)
16
inflexible(adjective, determined, resolute, uncompromising)
15
determined(verb, adjective, resolute, uncompromising)
15
resolute(adjective, determined, resolute, uncompromising)
15
unshakable(adjective, determined, resolute, uncompromising)
15
unyielding(adjective, determined, resolute, uncompromising)
14
immovable(adjective, determined, resolute, uncompromising)
13
stubborn(adjective, determined, resolute, uncompromising)
12
unbending(adjective, determined, resolute, uncompromising)
12
uncompromising(adjective, determined, resolute)
11
inexorable(adjective, determined, resolute, uncompromising)
11
intransigent(adjective, determined, resolute, uncompromising)
11
rigid(adjective, determined, resolute, uncompromising)
11
unwavering(adjective, determined, resolute, uncompromising)
10
obdurate(adjective, determined, resolute, uncompromising)
10
steadfast(adjective, determined, resolute, uncompromising)
8
unswerving(adjective, determined, resolute, uncompromising)
7
fixed(verb, adjective, determined, resolute, uncompromising)
7
relentless(adjective, determined, resolute, uncompromising)
7
resolved(adjective, determined, resolute, uncompromising)
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APASmart Define. (2015). unshakeable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/unshakeable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unshakeable thesaurus" https://smartdefine.org/unshakeable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, unshakeable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/unshakeable/thesaurus/synonyms>.
MLASmart Define. "unshakeable thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/unshakeable/thesaurus/synonyms>