206 entries under keen topic. ×
| open-eyed(adjective, feature, characteristic, sharp) | |
| ready(adjective, activity, open, sharp) | |
| quick-witted(adjective, strong, sharp, ability) | |
| astute(adjective, understanding, sharp, smart) | |
| wakeful(adjective, sharp, care, careful) | |
| on the ball(expression, adjective, idiom, adverb) | |
| animated(adjective, strong, moving, smart) | |
| on guard(expression, adjective, idiom, adverb) | |
| spry(adjective, activity, good, clear, moving) | |
| wise(verb, adjective, understanding, sharp) | |
| nimble(adjective, sharp, smart, bright) | |
| spirited(adjective, strong, moving, sharp) | |
| swift(adjective, activity, sharp, energetic) | |
| acute(adjective, understanding, strong, sharp) | |
| guarded(adjective, adverb, care, sensible) | |
| vigorous(adjective, good, clear, moving, pleasant) | |
| vivacious(adjective, strong, sharp, smart) | |
| wide-awake(adjective, adverb, sharp, smart) | |
| conscious(adjective, understanding, open, sharp) | |
| observing(adjective, understanding, sensible, certain) |
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| APA | Smart Define. (2016). alert thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/alert/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "alert thesaurus" https://smartdefine.org/alert/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, alert thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/alert/thesaurus/synonyms>. |
| MLA | Smart Define. "alert thesaurus" 26 February 2016. Web. 27 September 2026. <https://smartdefine.org/alert/thesaurus/synonyms> |