- Definitions|1
- Thesaurus|782
- Abbreviations|0
48 entries under secure topic. ×
| sound(adjective, calm, good, strong) | |
| reliable(adjective, calm, good, strong) | |
| stable(adjective, strong, sound, tough) | |
| substantial(adjective, calm, good, strong, sound) | |
| steady(adjective, calm, strong, sound) | |
| sturdy(adjective, calm, strong, sound) | |
| balanced(adjective, calm, strong, easy) | |
| durable(adjective, calm, strong, sound) | |
| fast(adjective, calm, strong, solid) | |
| rooted(strong, stable) | |
| stout(adjective, calm, strong, sound) | |
| enduring(adjective, calm, strong, sound) | |
| safe(calm, strong, solid, steady) | |
| settled(adjective, strong, easy, solid) | |
| staunch(adjective, calm, strong, sound) | |
| steadfast(adjective, calm, strong, easy) | |
| anchored(calm, strong, solid, steady) | |
| tight(adjective, good, strong, reason) | |
| well-built(adjective, calm, strong, sound) | |
| fixed(adjective, strong, sound, tough) |
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| APA | Smart Define. (2016). well-founded thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/well-founded/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "well-founded thesaurus" https://smartdefine.org/well-founded/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, well-founded thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/well-founded/thesaurus/synonyms>. |
| MLA | Smart Define. "well-founded thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/well-founded/thesaurus/synonyms> |