147 entries under sturdy topic. ×
| resolute(adjective, strong, secure, easy, flat) | |
| safe(adjective, good, strong, complete, secure) | |
| tough(adjective, strong, sound, firm, heavy) | |
| abiding(adjective, quality, strong, tough, flat) | |
| changeless(adjective, smooth, right, firm, solid) | |
| certain(adjective, good, strong, easy, firm) | |
| powerful(adjective, strong, sound, tough, solid) | |
| stalwart(adjective, strong, sound, tough, firm) | |
| unshakable(adjective, strong, hard, secure, continue) | |
| hardy(adjective, strong, sound, tough, solid) | |
| hearty(adjective, strong, sound, complete, tough) | |
| long-lasting(adjective, tough, constant, enduring) | |
| poised(adjective, calm, quiet, easy, firm) | |
| sensible(adjective, sound, reasonable, moderate, firm) | |
| tenacious(adjective, strong, sound, secure, tough) | |
| unswerving(adjective, firm, solid, fixed, resolute) | |
| vigorous(adjective, strong, sound, complete, tough) | |
| well-founded(adjective, strong, sound, secure, tough) | |
| cool(adjective, calm, quiet, sound, reasonable) | |
| hale(adjective, strong, sound, complete, tough) |
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| APA | Smart Define. (2015). stable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/stable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "stable thesaurus" https://smartdefine.org/stable/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, stable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/stable/thesaurus/synonyms>. |
| MLA | Smart Define. "stable thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/stable/thesaurus/synonyms> |