80 entries under tough topic. ×
| rough(strong, severe, fit, intense) | |
| rugged(strong, fit, healthy, well) | |
| sinewy(strong, fit, healthy, well) | |
| snappy(strong, fit, healthy, well) | |
| sound(adjective, strong, hard, fit) | |
| stout(strong, fit, healthy, well) | |
| strapping(strong, fit, healthy, well) | |
| sturdy(adjective, strong, hard, solid) | |
| thriving(strong, fit, healthy, well) | |
| tiger(strong, fit, healthy, well) | |
| vigorous(adjective, strong, fit, intense) | |
| vital(strong, fit, healthy, well) | |
| well(strong, fit, healthy) | |
| wicked(strong, fit, healthy, well) | |
| zappy(strong, fit, healthy, well) | |
| zippy(strong, fit, healthy, well) | |
| able(adjective, strong, fit, healthy) | |
| capable(adjective, strong, fit, healthy) | |
| fine-grained(hard, solid, rigid, inflexible) | |
| refractory(hard, solid, rigid, inflexible) |
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| APA | Smart Define. (2015). concentrated thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/concentrated/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "concentrated thesaurus" https://smartdefine.org/concentrated/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, concentrated thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/concentrated/thesaurus/synonyms>. |
| MLA | Smart Define. "concentrated thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/concentrated/thesaurus/synonyms> |