| enlightened(adjective, smart, experience, enthusiastic, alert) |
| keen(adjective, understanding, fine, sensible, delicate) |
| well-rounded(familiar, informed, well-informed) |
| apprehensive(adjective, cool, sensible, alert, significant) |
| intelligent(adjective, cool, sound, reasonable, sensible) |
| alert(adjective, understanding, keen, sensible, certain) |
| in the know(expression, adjective, idiom, sensible, alert) |
| shrewd(adjective, reasonable, significant, sober, realistic) |
| witting(adjective, understanding, cool, reasonable, keen) |
| appreciative(adjective, understanding, enthusiastic, alert, familiar) |
| astute(adjective, understanding, cool, sound, reasonable) |
| competent(adjective, cool, smart, experience, significant) |
| known(adjective, understanding, keen, sensible, certain) |
| observant(adjective, understanding, cool, sensible, significant) |
| on to(expression, adjective, idiom, understanding, knowledge) |
| responsive(adjective, understanding, keen, fine, happy) |
| versed(adjective, familiar, knowledgeable, skilled, aware) |
| wise to(expression, adjective, understanding, keen, sensible) |
| alive to(verb, expression, adjective, phrasal verb, understanding) |
| apprised(adjective, understanding, keen, sensible, certain) |