| prudent(adjective, action, characteristic, hard, sound) |
| slick(adjective, characteristic, mean, smooth, keen) |
| knowing(verb, adjective, characteristic, understanding, sound) |
| perspicacious(adjective, characteristic, keen, sharp, ability) |
| sagacious(adjective, characteristic, sound, smooth, reasonable) |
| cagey(noun, adjective, characteristic, mean, smooth) |
| discerning(adjective, characteristic, understanding, sound, smooth) |
| designing(adjective, negative, cunning, sly, crafty) |
| quick-witted(adjective, characteristic, sharp, smart, bright) |
| quick(adjective, understanding, sharp, smart, bright) |
| guileful(adjective, smooth, sharp, negative, dishonest) |
| slippery(adjective, characteristic, negative, cunning, deceitful) |
| devious(adjective, sharp, negative, cunning, deceitful) |
| insightful(adjective, characteristic, understanding, sound, keen) |
| judicious(adjective, characteristic, sound, smooth, reasonable) |
| savvy(adjective, characteristic, understanding, smooth, keen) |
| sensible(adjective, characteristic, hard, sound, smooth) |
| shifty(adjective, mean, smooth, dishonest, deceitful) |
| smooth(adjective, characteristic, mean, keen, sharp) |
| conniving(adjective, mean, smooth, negative, deceitful) |