15
resolute(adjective, tough, firm, determined, distant)
15
rigid(adjective, hard, determined, resolute, obstinate)
15
uncompromising(adjective, tough, firm, determined, distant)
14
inflexible(adjective, determined, resolute, rigid, obstinate)
13
determined(verb, adjective, hard, firm, resolute)
13
intransigent(adjective, determined, resolute, rigid, obstinate)
12
insistent(adjective, determined, resolute, obstinate, uncompromising)
11
obdurate(adjective, determined, resolute, rigid, obstinate)
11
unbending(adjective, determined, resolute, rigid, obstinate)
10
unyielding(adjective, determined, resolute, rigid, obstinate)
9
fixed(adjective, determined, stiff, resolute, rigid)
9
hard-nosed(adjective, determined, resolute, obstinate, uncompromising)
9
immovable(adjective, hard, determined, resolute, obstinate)
9
inexorable(adjective, tough, firm, determined, distant)
9
relentless(adjective, determined, resolute, rigid, obstinate)
9
set(adjective, determined, resolute, rigid, strict)
9
set in stone(expression, adjective, idiom, tough, firm)
9
standing pat(expression, adjective, tough, firm, determined)
9
stiff(adjective, tough, firm, determined, resolute)
9
unbendable(adjective, determined, resolute, obstinate, uncompromising)
11 years ago|1.3k views|share |citing 
APASmart Define. (2015). unswayable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/unswayable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unswayable thesaurus" https://smartdefine.org/unswayable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, unswayable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/unswayable/thesaurus/synonyms>.
MLASmart Define. "unswayable thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/unswayable/thesaurus/synonyms>