155 entries under fixed topic. ×

1
never-failing(adjective, firm, solid, intense, stable)
1
regular(adjective, set, firm, solid, determined)
1
reserved(adjective, cool, firm, solid, detached)
1
self-possessed(adjective, calm, cool, firm, solid)
1
solid as a rock(expression, adjective, idiom, strong, firm)
1
sound(adjective, strong, secure, firm, solid)
1
stolid(adjective, still, motionless, stationary)
1
strong-minded(adjective, determined, stubborn)
1
sure(adjective, strong, firm, solid, true)
1
tough nut(expression, adjective, steady, stubborn)
1
unfluctuating(adjective, strong, secure, firm, solid)
1
uniform(adjective, set, firm, solid, stable)
1
unquestioning(adjective, firm, solid, intense, stable)
0
abiding(adjective, firm, solid, stable)
0
adherent(firm, true, constant, steadfast)
0
allegiant(adjective, firm, solid, intense, stable)
0
at rest(expression, still, motionless, stationary)
0
brick-wall(adjective, firm, solid, stable)
0
close(firm, true, constant, steadfast)
0
constrained(firm, true, constant, steadfast)
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APASmart Define. (2015). immovable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/immovable/thesaurus/synonyms
ChicagoSmart Define. 2015. "immovable thesaurus" https://smartdefine.org/immovable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, immovable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/immovable/thesaurus/synonyms>.
MLASmart Define. "immovable thesaurus" 3 August 2015. Web. 22 September 2026. <https://smartdefine.org/immovable/thesaurus/synonyms>