44 entries under calm topic. ×

3
uniform(adjective, strong, secure, firm)
2
deep-rooted(adjective, strong, solid, steady)
2
reliable(adjective, strong, tough, solid)
2
resolute(strong, firm, solid, true)
2
secure(strong, firm, solid, true)
2
set(adjective, strong, firm, solid)
2
solid(strong, certain, steady, substantial)
2
well-built(strong, solid, steady, substantial)
2
well-founded(strong, solid, steady, substantial)
1
anchored(strong, solid, steady, substantial)
1
balanced(strong, solid, steady, substantial)
1
brick-wall(strong, solid, steady, substantial)
1
equable(adjective, strong, secure, firm)
1
fixed resistant(expression, strong, solid, substantial)
1
nailed(strong, solid, steady, substantial)
1
poised(strong, solid, steady, substantial)
1
safe(strong, solid, steady, substantial)
1
set in stone(expression, idiom, strong, solid)
1
solid as a rock(expression, idiom, strong, substantial)
1
stalwart(strong, solid, steady, substantial)
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APASmart Define. (2016). lasting thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/lasting/thesaurus/synonyms
ChicagoSmart Define. 2016. "lasting thesaurus" https://smartdefine.org/lasting/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, lasting thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/lasting/thesaurus/synonyms>.
MLASmart Define. "lasting thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/lasting/thesaurus/synonyms>