127 entries under tough topic. ×
| masterful(adjective, smart, energetic, powerful) | |
| robustious(adjective, strong, fit, healthy) | |
| thriving(adjective, strong, fit, healthy) | |
| unflagging(adjective, strong, sound, fit) | |
| unyielding(adjective, strong, hard, sound) | |
| able(adjective, strong, sound, sharp) | |
| booming(strong, fit, healthy, well) | |
| bright-eyed(adjective, good, clear, strong, great) | |
| bushy-tailed(adjective, good, clear, strong, great) | |
| full of life(expression, adjective, idiom, strong) | |
| hard as nails(expression, adjective, idiom, strong, hard) | |
| heavy(adjective, strong, sound, severe) | |
| nervy(adjective, smart, energetic, determined) | |
| normal(strong, fit, clean, pure) | |
| powerhouse(adjective, strong, great, solid) | |
| prospering(strong, fit, healthy, well) | |
| robustuous(strong, fit, healthy, well) | |
| rosy-cheeked(adjective, person, strong, fit) | |
| rough(strong, fit, healthy, well) | |
| steady(adjective, strong, sound, solid) |
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| APA | Smart Define. (2016). vigorous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/vigorous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "vigorous thesaurus" https://smartdefine.org/vigorous/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, vigorous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/vigorous/thesaurus/synonyms>. |
| MLA | Smart Define. "vigorous thesaurus" 1 April 2016. Web. 28 September 2026. <https://smartdefine.org/vigorous/thesaurus/synonyms> |