| acquainted(adjective, understanding, keen, sensible, certain) |
| awake(adjective, understanding, cool, keen, sensible) |
| in the know(expression, adjective, idiom, cool, sensible) |
| posted(adjective, familiar, knowledgeable, aware, informed) |
| sensible(adjective, understanding, reasonable, keen, certain) |
| sentient(adjective, understanding, reasonable, keen, sensible) |
| up(adjective, adverb, present, new, familiar) |
| alert(adjective, understanding, keen, sensible, certain) |
| appraised(adjective, alert, familiar, wise, knowledgeable) |
| appreciative(adjective, alert, familiar, wise, refined) |
| apprehensive(adjective, cool, sensible, alert, familiar) |
| apprised(adjective, understanding, keen, sensible, certain) |
| attentive(adjective, understanding, reasonable, keen, sensible) |
| briefed(knowledgeable, aware, informed, learned, well-informed) |
| cool(adjective, reasonable, alert, familiar, rational) |
| educated(adjective, familiar, polite, sophisticated, refined) |
| expert(adjective, familiar, knowledgeable, aware, informed) |
| fashionable(adjective, unusual, strange, new, fresh) |
| grounded(adjective, sensible, alert, familiar, wise) |
| heedful(adjective, alert, familiar, careful, wise) |