107 entries under keen topic. ×
| energetic(adjective, action, good, clear, strong) | |
| lively(adjective, action, good, clear, strong) | |
| active(adjective, action, good, person, clear) | |
| spirited(adjective, strong, moving, sharp) | |
| dynamic(adjective, action, strong, great, tough) | |
| animated(adjective, strong, moving, bright) | |
| brisk(adjective, action, strong, moving, pleasant) | |
| hearty(adjective, health, person, strong, great) | |
| forceful(adjective, action, strong, great, sound) | |
| zealous(adjective, tough, smart, warm) | |
| enthusiastic(adjective, moving, intense, energetic) | |
| fresh(adjective, energetic, healthy, strong, tough) | |
| eager(adjective, warm, intense, energetic) | |
| sprightly(adjective, action, good, clear, strong) | |
| spry(adjective, action, good, clear, strong) | |
| intense(adjective, strong, great, bright) | |
| ardent(adjective, warm, intense, energetic) | |
| forcible(adjective, strong, sound, strength, tough) | |
| quick(adjective, pleasant, sharp, smart) | |
| earnest(adjective, warm, intense, energetic) |
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| APA | Smart Define. (2016). vigorous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/vigorous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "vigorous thesaurus" https://smartdefine.org/vigorous/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, vigorous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/vigorous/thesaurus/synonyms>. |
| MLA | Smart Define. "vigorous thesaurus" 1 April 2016. Web. 27 September 2026. <https://smartdefine.org/vigorous/thesaurus/synonyms> |