78 entries under stable topic. ×

5
enduring(adjective, calm, strong, sound, secure)
5
unfaltering(adjective, firm, solid, determined)
5
unshakable(adjective, strong, hard, tough, continue)
4
fixed(adjective, close, strong, hard, sound)
4
tight(adjective, close, strong, hard, tough)
3
reliable(adjective, calm, strong, secure, tough)
3
sure(adjective, calm, strong, tough, continue)
2
cool(adjective, firm, solid, fixed)
2
immovable(adjective, strong, hard, tough, firm)
2
intense(adjective, strong, great, tough, firm)
2
set(adjective, calm, strong, hard, tough)
2
solid as a rock(expression, adjective, idiom, calm, strong)
2
unchangeable(adjective, calm, strong, secure, firm)
2
unshaken(adjective, firm, solid, fixed)
1
abiding(adjective, calm, strong, secure, tough)
1
balanced(adjective, calm, strong, secure, firm)
1
brick-wall(adjective, calm, strong, secure, firm)
1
calm(adjective, strong, secure, firm, solid)
1
certain(adjective, firm, solid, true)
1
constant(adjective, calm, strong, secure, tough)
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APASmart Define. (2016). sturdy thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sturdy/thesaurus/synonyms
ChicagoSmart Define. 2016. "sturdy thesaurus" https://smartdefine.org/sturdy/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, sturdy thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sturdy/thesaurus/synonyms>.
MLASmart Define. "sturdy thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/sturdy/thesaurus/synonyms>