Synonyms|308Antonyms|47|Broader|4Narrower|0Related|502

38 entries under protected topic. ×

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adjusted(adjective, strong, solid, stable, sure)
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buttoned down(expression, adjective, strong, solid, stable)
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defended(adjective, firm, safe, sheltered)
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guarded(adjective, firm, safe, sheltered)
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immune(adjective, safe, sheltered, locked)
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impregnable(adjective, firm, true, fixed, constant)
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inaccessible(adjective, tamper-proof)
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iron(adjective, strong, solid, stable, sure)
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riskless(adjective, safe, sheltered, locked)
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safe(adjective, strong, secure, steady, stable)
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safe and sound(expression, adjective, idiom, strong, solid)
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safe as houses(expression, adjective, idiom, safe, sheltered)
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sheltered(adjective, safe, locked)
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shielded(adjective, safe, sheltered, locked)
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solid as a rock(expression, adjective, idiom, strong, solid)
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unassailable(adjective, sound, firm, safe, sheltered)
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undamaged(adjective, safe, sheltered, locked)
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unharmed(adjective, safe, sheltered, locked)
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ChicagoSmart Define. 2016. "fastened thesaurus" https://smartdefine.org/fastened/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, fastened thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/fastened/thesaurus/synonyms>.
MLASmart Define. "fastened thesaurus" 11 February 2016. Web. 24 September 2026. <https://smartdefine.org/fastened/thesaurus/synonyms>