68 entries under alert topic. ×
| lively(sharp, bright, aware, attentive) | |
| looking for(expression, keen, anxious, careful) | |
| looking to(expression, keen, anxious, careful) | |
| not missing a trick(expression, adjective, idiom, careful) | |
| on alert(expression, keen, anxious, careful) | |
| on toes(expression, adjective, keen, anxious) | |
| perceptive(adjective, sharp, bright, lively) | |
| prepared(adjective, set, ready, careful) | |
| quick(sharp, bright, lively, aware) | |
| see after(expression, adjective, careful, cautious) | |
| see to(expression, adjective, careful, cautious) | |
| sharp(adjective, keen, bright, lively) | |
| spirited(sharp, bright, lively, aware) | |
| suspicious(adjective, careful, considerate, cautious) | |
| switched on(expression, sharp, bright, lively) | |
| unsleeping(adjective, keen, anxious, careful) | |
| waiting on(expression, keen, anxious, careful) | |
| wakeful(adjective, keen, anxious, careful) | |
| wise(sharp, bright, lively, aware) | |
| with eyes peeled(expression, adjective, idiom, keen, anxious) |
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| APA | Smart Define. (2015). on guard thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/on_guard/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "on guard thesaurus" https://smartdefine.org/on_guard/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, on guard thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/on_guard/thesaurus/synonyms>. |
| MLA | Smart Define. "on guard thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/on_guard/thesaurus/synonyms> |