50 entries under steady topic. ×

2
calm(strong, solid, substantial, even)
2
constant(calm, strong, solid, substantial)
2
well-built(adjective, calm, strong, sound, secure)
1
abiding(calm, strong, solid, substantial)
1
brick-wall(calm, strong, solid, substantial)
1
equable(calm, strong, solid, substantial)
1
even(calm, strong, solid, substantial)
1
fixed(adjective, strong, sound, secure, tough)
1
immutable(calm, strong, solid, substantial)
1
invariable(calm, strong, solid, substantial)
1
long-standing(adjective, even, unchanging)
1
nailed(calm, strong, secure, solid)
1
perdurable(calm, strong, solid, substantial)
1
permanent(calm, strong, solid, substantial)
1
poised(calm, strong, solid, substantial)
1
resolute(adjective, calm, strong, secure, easy)
1
robust(adjective, strong, sound, secure, tough)
1
stabile(calm, strong, solid, substantial)
1
stalwart(adjective, calm, strong, sound, secure)
1
stationary(calm, strong, secure, solid)
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APASmart Define. (2016). well-founded thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/well-founded/thesaurus/synonyms
ChicagoSmart Define. 2016. "well-founded thesaurus" https://smartdefine.org/well-founded/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, well-founded thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/well-founded/thesaurus/synonyms>.
MLASmart Define. "well-founded thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/well-founded/thesaurus/synonyms>