206 entries under keen topic. ×
| perspicacious(adjective, understanding, bright, perceptive) | |
| sprightly(adjective, good, clear, strong, pleasant) | |
| animate(verb, adjective, strong, produce) | |
| discerning(adjective, understanding, sharp, smart) | |
| energetic(adjective, good, clear, moving, pleasant) | |
| expeditious(adjective, activity, energetic, active) | |
| diligent(adjective, intense, energetic, lively) | |
| sharp-witted(adjective, ability, smart, intelligent) | |
| chipper(adjective, good, clear, pleasant) | |
| gay(adjective, smart, bright, happy) | |
| knowing(adjective, understanding, sharp, smart) | |
| sleepless(adjective, careful, restless, disturbed) | |
| brainy(adjective, understanding, sharp, smart) | |
| enthusiastic(adjective, strong, moving, bright) | |
| fast(adjective, activity, bright, energetic) | |
| insightful(adjective, understanding, sensitive, familiar) | |
| knowledgeable(adjective, understanding, sharp, smart) | |
| on the job(expression, adjective, idiom, sharp) | |
| perky(adjective, moving, bright, happy) | |
| responsive(adjective, understanding, open, sharp) |
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| APA | Smart Define. (2016). alert thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/alert/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "alert thesaurus" https://smartdefine.org/alert/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, alert thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/alert/thesaurus/synonyms>. |
| MLA | Smart Define. "alert thesaurus" 26 February 2016. Web. 28 September 2026. <https://smartdefine.org/alert/thesaurus/synonyms> |