66 entries under sturdy topic. ×

4
solid(adjective, calm, strong, firm, fast)
4
unfaltering(adjective, set, clear, firm, solid)
3
reliable(adjective, calm, strong, secure, firm)
3
resolute(adjective, calm, strong, secure, firm)
3
settled(adjective, firm, solid, stable, fixed)
3
stabile(adjective, calm, strong, secure, smooth)
2
certain(adjective, set, clear, firm, solid)
2
dependable(adjective, firm, solid, ordinary, usual)
2
durable(adjective, calm, strong, secure, firm)
2
fast(adjective, calm, strong, secure, firm)
2
immovable(adjective, set, firm, solid, still)
2
staunch(adjective, calm, strong, secure, firm)
2
steady-going(adjective, firm, solid, steady, substantial)
1
brick-wall(adjective, calm, strong, secure, firm)
1
calm(adjective, strong, secure, firm, solid)
1
never-failing(adjective, set, clear, firm, solid)
1
poised(adjective, calm, strong, secure, firm)
1
safe(adjective, calm, strong, secure, firm)
1
secure(adjective, calm, strong, firm, solid)
1
serene(adjective, calm, quiet, soft, gentle)
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APASmart Define. (2015). unvarying thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unvarying/thesaurus/synonyms
ChicagoSmart Define. 2015. "unvarying thesaurus" https://smartdefine.org/unvarying/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, unvarying thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unvarying/thesaurus/synonyms>.
MLASmart Define. "unvarying thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/unvarying/thesaurus/synonyms>