| cagey(adjective, careful, cautious, aware, attentive) |
| careful(adjective, cautious, aware, attentive, wary) |
| cautious(adjective, careful, knowledgeable, aware, attentive) |
| certain(adjective, understanding, keen, sensible, alert) |
| chary(adjective, careful, knowledgeable, cautious, aware) |
| cognisant |
| conscientious(adjective, careful, knowledgeable, cautious, aware) |
| conversant(adjective, understanding, keen, sensible, certain) |
| discerning(adjective, understanding, keen, sensible, certain) |
| felt(adjective, understanding, keen, sensible, certain) |
| gushing |
| heedful(adjective, careful, knowledgeable, cautious, aware) |
| hep |
| impressible |
| impressionable |
| impressive |
| in on(expression, adjective, understanding, keen, sensible) |
| in right mind(expression, adjective, idiom, understanding, keen) |
| in the secret(expression, idiom) |
| informed(adjective, understanding, keen, sensible, certain) |