133 entries under determined topic. ×

7
headstrong(adjective, tough, resolute, stubborn)
7
implacable(adjective, mean, strong, hard, tough)
7
pigheaded(adjective, mean, hard, usual)
7
resistant(adjective, firm, resolute, obstinate)
7
standing pat(adjective, resolute, obstinate, uncompromising)
7
unswerving(adjective, firm, solid, intense)
6
contrary(adjective, difficult, resolute, obstinate)
6
grim(adjective, strong, hard, tough)
6
inelastic(adjective, resolute, obstinate, uncompromising)
6
iron(adjective, mean, strong, hard, tough)
6
pertinacious(adjective, difficult, resolute, obstinate)
6
recalcitrant(adjective, tough, difficult, fixed)
6
refractory(adjective, tough, firm, difficult)
6
steely(adjective, strong, hard, tough)
6
stiff-necked(adjective, mean, strong, hard, tough)
6
wilful(adjective, resolute, uncompromising, unshakeable)
5
hardheaded(adjective, strong, hard, tough)
5
perverse(adjective, mean, hard, wild)
5
stern(adjective, resolute, rigid, uncompromising)
5
unflinching(adjective, fixed, resolute, persistent)
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APASmart Define. (2015). immovable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/immovable/thesaurus/synonyms
ChicagoSmart Define. 2015. "immovable thesaurus" https://smartdefine.org/immovable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, immovable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/immovable/thesaurus/synonyms>.
MLASmart Define. "immovable thesaurus" 3 August 2015. Web. 24 September 2026. <https://smartdefine.org/immovable/thesaurus/synonyms>