55 entries under tough topic. ×
| dependable(adjective, strong, firm, solid) | |
| hardy(adjective, strong, hard, sound) | |
| vigorous(adjective, strong, sound, solid) | |
| hale(adjective, strong, sound, solid) | |
| reliable(adjective, calm, strong, secure) | |
| stalwart(adjective, calm, strong, sound, secure) | |
| tenacious(adjective, strong, sound, secure) | |
| hearty(adjective, strong, sound, solid) | |
| unbreakable(adjective, strong, hard, firm) | |
| well-made(adjective, strong, sound, solid) | |
| able-bodied(adjective, strong, sound, solid) | |
| heavy-duty(adjective, strong, sound, solid) | |
| perduring(adjective, stable, sturdy, constant) | |
| staunch(adjective, calm, strong, sound, secure) | |
| well-founded(adjective, calm, strong, sound, secure) | |
| adamantine(adjective, strong, firm, stiff) | |
| big(adjective, strong, sound, solid) | |
| hard as nails(expression, adjective, idiom, strong, hard) | |
| heavy(adjective, strong, sound, solid) | |
| in fine feather(expression, adjective, idiom, strong, sound) |
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| APA | Smart Define. (2015). durable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/durable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "durable thesaurus" https://smartdefine.org/durable/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, durable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/durable/thesaurus/synonyms>. |
| MLA | Smart Define. "durable thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/durable/thesaurus/synonyms> |