- Definitions|1
- Thesaurus|497
- Abbreviations|0
| sitting pretty(expression, adjective, secure, safe, snug) | |
| snug(adjective, secure, safe, intact, guarded) | |
| stodgy | |
| supreme(adjective, certain) | |
| tenable | |
| tended(adjective, secure, safe, snug, intact) | |
| true(adjective, certain) | |
| trustworthy(adjective, certain) | |
| unalterable | |
| unambiguous(adjective, certain) | |
| unapproachable | |
| unarguable | |
| unasked | |
| unattainable | |
| unbendable | |
| unchallengeable | |
| undamaged(adjective, secure, safe, snug, intact) | |
| under lock and key(expression, idiom, secure, safe, snug) | |
| unequivocal(adjective, certain) | |
| unharmed(adjective, secure, safe, snug, intact) |
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| APA | Smart Define. (2015). unassailable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unassailable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unassailable thesaurus" https://smartdefine.org/unassailable/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, unassailable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unassailable/thesaurus/synonyms>. |
| MLA | Smart Define. "unassailable thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/unassailable/thesaurus/synonyms> |