424 entries under adjective topic. ×

6
wilful(determined, resolute, uncompromising, unshakeable)
5
hardheaded(strong, hard, tough, determined)
5
immotile(secure, steady, fixed, rigid)
5
imperturbable(calm, cool, firm, solid)
5
perverse(mean, hard, wild, determined)
5
rigorous(set, strong, hard, tough)
5
stern(determined, resolute, rigid, uncompromising)
5
still(secure, rigid, inflexible, passive)
5
unflinching(determined, fixed, resolute, persistent)
4
calm(cool, firm, solid, still)
4
cool(calm, firm, solid, steady)
4
dispassionate(cool, detached, blank, sober)
4
equable(firm, solid, stable, fixed)
4
irremovable
4
opinionated(determined, fixed, resolute, inflexible)
4
persevering(determined, steady, resolute, persistent)
4
riveted(strong, secure, still, substantial)
4
self-willed(difficult, determined, resolute, stubborn)
4
severe(strong, hard, tough, cruel)
4
stony
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APASmart Define. (2015). immovable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/immovable/thesaurus/synonyms
ChicagoSmart Define. 2015. "immovable thesaurus" https://smartdefine.org/immovable/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, immovable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/immovable/thesaurus/synonyms>.
MLASmart Define. "immovable thesaurus" 3 August 2015. Web. 25 September 2026. <https://smartdefine.org/immovable/thesaurus/synonyms>