| clever(adjective, cool, sound, smooth, keen) |
| sharp(adjective, mean, understanding, cool, sound) |
| shrewd(adjective, mean, understanding, hard, sound) |
| intelligent(adjective, understanding, cool, sound, smooth) |
| keen(adjective, understanding, smooth, sharp, smart) |
| perspicacious(adjective, understanding, keen, sharp, ability) |
| perceptive(adjective, understanding, cool, sound, smooth) |
| smart(adjective, mean, understanding, cool, sound) |
| wise(adjective, understanding, cool, sound, smooth) |
| crafty(adjective, mean, smooth, keen, sharp) |
| cunning(adjective, mean, sound, smooth, keen) |
| canny(adjective, mean, cool, kind, smooth) |
| bright(adjective, cool, keen, sharp, smart) |
| sagacious(adjective, understanding, cool, sound, smooth) |
| discerning(adjective, understanding, cool, sound, smooth) |
| quick(adjective, understanding, cool, keen, sharp) |
| quick-witted(adjective, cool, keen, sharp, smart) |
| sly(adjective, mean, smooth, keen, sharp) |
| acute(adjective, understanding, smooth, keen, sharp) |
| wily(adjective, smooth, sharp, cunning, shrewd) |