- Definitions|1
- Thesaurus|497
- Abbreviations|0
63 entries under protected topic. ×
| impregnable(adjective, strong, secure, resolute, safe) | |
| inviolable(adjective, secure, safe, snug, intact) | |
| secure(adjective, good, sound, sensible, safe) | |
| strong(adjective, sound, secure, resolute, safe) | |
| invulnerable(adjective, strong, sound, secure, resolute) | |
| safe(adjective, clear, sound, secure, harm) | |
| firm(adjective, clear, hard, sound, plain) | |
| sound(adjective, good, clear, sensible, certain) | |
| steady(adjective, safe, sheltered, locked) | |
| sure(adjective, set, certain, true, safe) | |
| fixed(adjective, clear, hard, sound, firm) | |
| set(adjective, clear, sound, plain, certain) | |
| solid(adjective, safe, sheltered, locked) | |
| stable(adjective, safe, sheltered, locked) | |
| buttoned up(expression, adjective, secure, safe, snug) | |
| cherished(adjective, secure, safe, snug, intact) | |
| free from danger(expression, idiom, secure, safe, snug) | |
| guarded(adjective, secure, safe, snug, intact) | |
| home-free(adjective, secure, safe, snug, intact) | |
| impervious(adjective, sound, secure, firm, safe) |
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| APA | Smart Define. (2015). unassailable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unassailable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unassailable thesaurus" https://smartdefine.org/unassailable/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, unassailable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unassailable/thesaurus/synonyms>. |
| MLA | Smart Define. "unassailable thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/unassailable/thesaurus/synonyms> |