| strong room(noun, expression, idiom, till, vault) | |
| suitable | |
| tame(adjective, dangerous, innocuous, benign, harmless) | |
| tentative(adjective, careful, thoughtful, prudent, watchful) | |
| thoughtful(adjective, careful, cautious, watchful, tactful) | |
| treasure-house(noun, treasury) | |
| undivided | |
| uninjurious(adjective, kindly, unpolluted, ignorant, naive) | |
| unspoiled(adjective, clean, solid, perfect, pure) | |
| upheld | |
| upright(adjective, clear, strong, clean, honest) | |
| vindicated(adjective, state, secure, harm, snug) | |
| all | |
| OK | |
| adept | |
| arsenal(noun, store, cache, warehouse, repository) | |
| assured | |
| benevolent | |
| benign(adjective, kindly, innocuous, harmless, well-meaning) | |
| bona fide |
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| APA | Smart Define. (2016). safe thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/safe/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "safe thesaurus" https://smartdefine.org/safe/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, safe thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/safe/thesaurus/synonyms>. |
| MLA | Smart Define. "safe thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/safe/thesaurus/synonyms> |