| abreast(aware, informed, well-informed) |
| alert(adjective, familiar, wise, knowledgeable, responsive) |
| alive(adjective, sensible, alert, familiar, wise) |
| appraised(adjective, alert, familiar, wise, knowledgeable) |
| appreciative(adjective, alert, familiar, wise, knowledgeable) |
| apprised(adjective, alert, familiar, wise, knowledgeable) |
| attentive(adjective, alert, familiar, wise, knowledgeable) |
| aware(adjective, sensible, alert, rational, knowledgeable) |
| cognizant(adjective, sensible, alert, familiar, wise) |
| conversant(adjective, sensible, knowledgeable, aware, informed) |
| cool(adjective, alert, familiar, wise, knowledgeable) |
| down with(expression, adjective, sensible, knowledgeable, witting) |
| enlightened(adjective, alert, familiar, rational, wise) |
| go-go(adjective, alert, familiar, wise, knowledgeable) |
| groovy(adjective, alert, familiar, wise, knowledgeable) |
| heedful(adjective, alert, familiar, wise, knowledgeable) |
| hep to(expression, adjective, sensible, knowledgeable, witting) |
| hip(adjective, alert, familiar, wise, knowledgeable) |
| hip to(expression, adjective, sensible, rational, knowledgeable) |
| in on(expression, adjective, sensible, knowledgeable, witting) |