75 entries under substantial topic. ×
| able(adjective, strong, sound, tough, fit) | |
| estimable(significant, definite, considerable) | |
| powerful(adjective, strong, sound, tough, fit) | |
| secure(adjective, clear, sound, solid, pure) | |
| sinewy(adjective, strong, hard, tough, solid) | |
| strapping(adjective, strong, sound, tough, right) | |
| appreciable(adjective, significant, considerable, noticed) | |
| generous(adjective, fair, big, enthusiastic, vigorous) | |
| heavy(adjective, solid, powerful, sturdy) | |
| mighty(adjective, strong, hard, sound, tough) | |
| sensible(adjective, sound, big, significant, rational) | |
| significant(adjective, big, important, definite) | |
| staunch(adjective, health, strong, sound, tough) | |
| durable(adjective, strong, hard, solid, heavy) | |
| hard as nails(expression, adjective, idiom, strong, hard) | |
| in fine feather(expression, adjective, idiom, good, strong) | |
| material(adjective, significant, definite, considerable) | |
| steady(adjective, sound, sensible, solid, heavy) | |
| capable(adjective, strong, sound, tough, fit) | |
| definite(adjective, pleasant, big, significant) |
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| APA | Smart Define. (2016). healthy thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/healthy/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "healthy thesaurus" https://smartdefine.org/healthy/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, healthy thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/healthy/thesaurus/synonyms>. |
| MLA | Smart Define. "healthy thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/healthy/thesaurus/synonyms> |