- Definitions|0
- Thesaurus|239
- Abbreviations|0
| with weather eye open(expression, adjective, idiom, keen, careful) | |
| Argus-eyed | |
| accommodating(considerate, responsive, helpful) | |
| adroit(adjective, smooth, wise, prudent, tactful) | |
| advisable(adjective, smooth, wise, prudent, tactful) | |
| alerter | |
| alerts | |
| apprehensive(alert, aware, clued-in) | |
| assiduous(considerate, responsive, helpful) | |
| astir(adjective, careful, restless, disturbed, sleepless) | |
| attentive to | |
| bright-eyed and bushy-tailed(adjective, sharp, bright, lively, alert) | |
| civil(considerate, responsive, helpful) | |
| clued-in(alert, aware) | |
| clued up(expression, alert, aware, clued-in) | |
| concentrating(adjective, considerate, responsive, aware, helpful) | |
| conscious | |
| cool(adjective, smooth, wise, prudent, tactful) | |
| courteous(considerate, responsive, helpful) | |
| defensive(adjective, adverb, alert, careful, watchful) |
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| APA | Smart Define. (2015). on the lookout thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/on_the_lookout/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "on the lookout thesaurus" https://smartdefine.org/on_the_lookout/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2015, on the lookout thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/on_the_lookout/thesaurus/synonyms>. |
| MLA | Smart Define. "on the lookout thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/on_the_lookout/thesaurus/synonyms> |