| sophic(adjective, understanding, cool, smooth, keen) |
| well-informed(adjective, cool, sensible, significant, familiar) |
| critical(sharp, sensitive, meaningful, piercing, astute) |
| alive(adjective, cool, crack, significant, intelligent) |
| all-knowing |
| analytical(penetrating, searching) |
| appercipient |
| apprehending |
| au fait(expression, adjective, familiar, informed, well-informed) |
| clear-sighted(adjective, sharp, sensitive, intelligent, wise) |
| cognisant |
| competent(adjective, cool, significant, intelligent, brilliant) |
| comprehending |
| conversant(adjective, understanding, cool, crack, significant) |
| cool(adjective, smooth, sharp, smart, significant) |
| crack(adjective, cool, significant, intelligent, brilliant) |
| deliberate(adjective, cool, crack, significant, intelligent) |
| discreet(adjective, understanding, keen, sharp, sensible) |
| ear to the ground(expression, adjective, idiom, understanding, keen) |
| enlightened(adjective, sound, sharp, sensible, deep) |