71 entries under substantial topic. ×
| unyielding(adjective, strong, hard, sound, tough) | |
| mighty(adjective, person, body, strong, great) | |
| able-bodied(adjective, person, body, strong, great) | |
| athletic(adjective, person, body, strong, sound) | |
| energetic(adjective, strong, sound, tough, fit) | |
| sinewy(adjective, strong, hard, sound, tough) | |
| potent(adjective, strong, great, sound, strength) | |
| active(adjective, strong, sound, tough, fit) | |
| solid(adjective, person, body, strong, sound) | |
| forceful(adjective, strong, great, sound, tough) | |
| staunch(noun, adjective, health, strong, sound) | |
| well-built(adjective, person, body, strong, sound) | |
| forcible(adjective, strong, sound, strength, tough) | |
| big(adjective, person, body, strong, sound) | |
| secure(verb, adjective, strong, sound, tough) | |
| hard as nails(expression, adjective, idiom, strong, hard) | |
| heavy(adjective, person, body, strong, hard) | |
| tenacious(adjective, strong, sound, secure, tough) | |
| able(adjective, strong, sound, tough, fit) | |
| capable(adjective, strong, sound, tough, fit) |
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| APA | Smart Define. (2016). robust thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/robust/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "robust thesaurus" https://smartdefine.org/robust/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, robust thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/robust/thesaurus/synonyms>. |
| MLA | Smart Define. "robust thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/robust/thesaurus/synonyms> |