108 entries under stable topic. ×

3
strong(adjective, hard, secure, tough, solid)
3
tight(adjective, strong, secure, firm, solid)
3
unchanging(adjective, set, firm, solid, still)
2
balanced(adjective, firm, solid, fixed)
2
consistent
2
continuous
2
dependable(adjective, firm, solid, fixed)
2
fastened(adjective, strong, secure, firm, solid)
2
serene(adjective, calm, cool, firm, solid)
2
single-minded(adjective, firm, solid, intense, cruel)
2
sturdy(adjective, strong, hard, tough, firm)
2
taut(adjective, strong, secure, substantial)
2
unvarying(adjective, set, firm, solid, still)
1
adjusted(adjective, strong, solid, sure)
1
ardent(adjective, firm, solid, intense, true)
1
bound(adjective, strong, solid, cruel, determined)
1
buttoned down(expression, adjective, strong, solid)
1
certain(adjective, firm, solid, determined, usual)
1
closed(strong, secure, substantial, unmoving)
1
enduring(adjective, firm, solid, determined, steady)
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APASmart Define. (2015). immovable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/immovable/thesaurus/synonyms
ChicagoSmart Define. 2015. "immovable thesaurus" https://smartdefine.org/immovable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, immovable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/immovable/thesaurus/synonyms>.
MLASmart Define. "immovable thesaurus" 3 August 2015. Web. 23 September 2026. <https://smartdefine.org/immovable/thesaurus/synonyms>