| alert(adjective, feature, characteristic, understanding, keen) |
| watchful(adjective, feature, characteristic, understanding, cool) |
| attentive(adjective, feature, characteristic, understanding, keen) |
| observant(adjective, feature, characteristic, understanding, cool) |
| wary(adjective, sharp, bright, sensible, deliberate) |
| cautious(adjective, sensible, restrained, alert, careful) |
| overprotective(adjective, care, attention, careful, protection) |
| heedful(adjective, feature, characteristic, sharp, bright) |
| prudent(adjective, action, sensible, restrained, thought) |
| circumspect(adjective, complete, sharp, bright, total) |
| open-eyed(adjective, feature, characteristic, sharp, bright) |
| careful(adjective, sharp, bright, sensible, excited) |
| guarded(adjective, adverb, care, sensible, deliberate) |
| regardful(adjective, feature, characteristic, detail, deliberate) |
| aware(adjective, feature, characteristic, understanding, cool) |
| wakeful(adjective, sharp, care, alert, careful) |
| mindful(adjective, understanding, keen, sensible, certain) |
| on guard(expression, adjective, idiom, adverb, sharp) |
| on the lookout(expression, adjective, idiom, sharp, care) |
| sharp(adjective, understanding, cool, bright, lively) |