- Definitions|2
- Thesaurus|1.9k
- Abbreviations|0
106 entries under vigorous topic. ×
| aggressive(adjective, strong, energetic, lively, active) | |
| ardent(adjective, difficult, energetic, active) | |
| brisk(adjective, action, strong, tough, intense) | |
| kinetic(adjective, action, strong, moving, energetic) | |
| zippy(adjective, strong, tough, energetic, powerful) | |
| enterprising(adjective, activity, strong, tough, smart) | |
| enthusiastic(adjective, determined, active, resolute) | |
| indefatigable(adjective, strong, moving, difficult, energetic) | |
| mettlesome(adjective, strong, tough, intense, energetic) | |
| red-blooded(adjective, strong, tough, intense, energetic) | |
| fervent(adjective, difficult, stressful) | |
| hearty(adjective, strong, tough, intense, energetic) | |
| robust(adjective, strong, tough, intense, energetic) | |
| sprightly(adjective, action, strong, moving, lively) | |
| zestful(adjective, energetic, lusty) | |
| bold(adjective, tough, smart, energetic, active) | |
| vehement(adjective, difficult, intense, energetic, lively) | |
| agitated | |
| burning(adjective, difficult, stressful) | |
| emphatic |
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| APA | Smart Define. (2016). strenuous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/strenuous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "strenuous thesaurus" https://smartdefine.org/strenuous/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, strenuous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/strenuous/thesaurus/synonyms>. |
| MLA | Smart Define. "strenuous thesaurus" 1 April 2016. Web. 26 September 2026. <https://smartdefine.org/strenuous/thesaurus/synonyms> |