| knowing(adjective, understanding, sound, keen, sharp) |
| alert(adjective, understanding, keen, sensitive, familiar) |
| judicious(adjective, understanding, cool, sound, keen) |
| percipient(adjective, understanding, cool, keen, sharp) |
| sensible(adjective, understanding, cool, sound, smooth) |
| smart(adjective, understanding, cool, sound, sharp) |
| canny(adjective, cool, smooth, keen, sharp) |
| conscious(adjective, understanding, cool, keen, sharp) |
| crafty(adjective, keen, sharp, smart, sensible) |
| intuitive(adjective, understanding, sound, keen, sharp) |
| quick(adjective, understanding, cool, keen, sharp) |
| quick-witted(adjective, cool, sharp, smart, significant) |
| sapient(adjective, sound, sharp, sensible, intelligent) |
| artful(adjective, sharp, smart, astute, intuitive) |
| brainy(adjective, understanding, cool, keen, sharp) |
| bright(adjective, cool, keen, sharp, smart) |
| discriminating(sharp, smart, sensitive, intelligent, wise) |
| foresighted(adjective, sound, sharp, sensible, intelligent) |
| observant(adjective, understanding, cool, keen, sharp) |
| savvy(adjective, understanding, keen, sharp, smart) |