| awake(adjective, alert, careful, considerate, disturbed) |
| cagey(adjective, sharp, lively, restrained, careful) |
| careful(adjective, adverb, keen, sharp, lively) |
| hawk-eyed |
| keen-eyed |
| on the alert(adjective, alert, careful, disturbed, aware) |
| on the job(expression, adjective, idiom, sharp, lively) |
| on the qui vive(expression, adjective, idiom, sharp, lively) |
| prudent(adjective, smooth, restrained, alert, careful) |
| sharp-eyed |
| sleepless(adjective, keen, anxious, alert, careful) |
| wide-awake(adjective, keen, sharp, lively, alert) |
| active(adjective, sharp, bright, lively, alert) |
| acute(adjective, keen, anxious, alert, careful) |
| agog(adjective, keen, anxious, alert, careful) |
| alive(adjective, careful, restless, disturbed, sleepless) |
| all eyes |
| anxious(adjective, keen, alert, careful, attentive) |
| aux aguets |
| bright(adjective, sharp, lively, alert, aware) |