127 entries under tough topic. ×
| solid(adjective, strong, sound, complete) | |
| flourishing(adjective, strong, great, sound) | |
| staunch(noun, adjective, health, strong, sound) | |
| tenacious(adjective, strong, sound, fit) | |
| virile(adjective, strong, sound, fit) | |
| bold(adjective, keen, smart, energetic) | |
| durable(adjective, strong, sound, solid) | |
| firm(noun, adjective, strong, fit) | |
| smart(adjective, keen, sharp, bright) | |
| substantial(adjective, strong, sound, complete) | |
| hefty(adjective, strong, fit, big) | |
| blooming(adjective, good, clear, strong, great) | |
| chipper(adjective, good, clear, strong, great) | |
| full-bodied(adjective, strong, fit, powerful) | |
| hale and hearty(expression, adjective, idiom, strong) | |
| in good shape(expression, adjective, idiom, person, strong) | |
| live(verb, strong, fit, active) | |
| stable(adjective, strong, sound, complete) | |
| healthful(health, strong, fit, fresh) | |
| in fine fettle(expression, adjective, idiom, strong, sound) |
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| APA | Smart Define. (2016). vigorous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/vigorous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "vigorous thesaurus" https://smartdefine.org/vigorous/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, vigorous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/vigorous/thesaurus/synonyms>. |
| MLA | Smart Define. "vigorous thesaurus" 1 April 2016. Web. 29 September 2026. <https://smartdefine.org/vigorous/thesaurus/synonyms> |