Synonyms|219Antonyms|0|Broader|0Narrower|0Related|0

164 entries under adjective topic. ×

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defended(safe, sheltered, protected, locked)
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dependable(firm, solid, stable, fixed)
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fastened(strong, solid, stable, sure)
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flourishing(strong, great, right, healthy)
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guarded(safe, sheltered, protected, locked)
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hardy(strong, great, right, healthy)
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immune(safe, sheltered, protected, locked)
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imperturbable(firm, solid, stable, fixed)
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impregnable(safe, sheltered, protected, locked)
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intense(firm, solid, stable, fixed)
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levelheaded(firm, solid, stable, fixed)
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liege(firm, solid, stable, fixed)
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loyal(firm, solid, stable, fixed)
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never-failing(firm, solid, substantial, stable)
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normal(usual, conventional, customary, established)
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patterned(firm, solid, substantial, stable)
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protected(safe, sheltered, locked)
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reserved(firm, solid, stable, fixed)
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riskless(safe, sheltered, protected, locked)
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robust(great, right, healthy, trim)
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APASmart Define. (2011). solid as a rock thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/solid_as_a_rock/thesaurus/synonyms
ChicagoSmart Define. 2011. "solid as a rock thesaurus" https://smartdefine.org/solid_as_a_rock/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2011, solid as a rock thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/solid_as_a_rock/thesaurus/synonyms>.
MLASmart Define. "solid as a rock thesaurus" 24 May 2011. Web. 29 September 2026. <https://smartdefine.org/solid_as_a_rock/thesaurus/synonyms>