| clever(adjective, smooth, keen, sharp, smart) |
| shrewd(adjective, mean, smooth, keen, sharp) |
| tricky(adjective, sharp, intelligent, deceitful, shrewd) |
| canny(adjective, mean, smooth, keen, sharp) |
| crafty(adjective, mean, smooth, keen, sharp) |
| cunning(adjective, mean, smooth, keen, sharp) |
| sly(adjective, mean, smooth, keen, sharp) |
| wily(adjective, smooth, sharp, deceitful, shrewd) |
| chary(adjective, reasonable, sensible, restrained, alert) |
| wary(adjective, sharp, smart, bright, sensible) |
| cagy(adjective, secret, sneaky, stealthy) |
| cautious(adjective, reasonable, smart, sensible, restrained) |
| secretive(adjective, secret, tricky, sneaky, uncommunicative) |
| circumspect(adjective, sharp, lively, restrained, careful) |
| shifty(adjective, mean, smooth, deceitful, untrustworthy) |
| artful(adjective, smooth, sharp, intelligent, clever) |
| careful(adjective, sharp, smart, bright, sensible) |
| scheming(adjective, mean, smooth, deceitful, dubious) |
| slick(adjective, mean, smooth, keen, sharp) |
| foxy(adjective, mean, smooth, keen, sharp) |