| sharp(adjective, smooth, keen, smart, intelligent) |
| sly(adjective, smooth, keen, sharp, smart) |
| tricky(adjective, smooth, sharp, smart, intelligent) |
| wily(adjective, smooth, sharp, intelligent, clever) |
| wise(adjective, smooth, keen, sharp, smart) |
| adroit(adjective, smart, shrewd, clever, subtle) |
| artful(adjective, smooth, sharp, smart, intelligent) |
| cagey(adjective, smooth, keen, sharp, smart) |
| deceitful(adjective, cunning, sly, crafty, devious) |
| discerning(adjective, smooth, keen, sharp, smart) |
| educated(adjective, knowing) |
| hep(smart, shrewd, clever, subtle, artful) |
| informed(adjective, knowing) |
| ingenious(adjective, smooth, keen, sharp, smart) |
| intellectual(adjective, knowing) |
| keen(adjective, smooth, sharp, smart, intelligent) |
| on to(expression, adjective, refined, practical, mature) |
| perceptive(adjective, smooth, keen, sharp, smart) |
| perspicacious(sharp, smart, intelligent, shrewd, clever) |
| refined(adjective, cool, smooth, practical, mature) |