| sibylline(adjective, intellect, sharpness) |
| skilled(adjective, intellect, sharpness) |
| slippery(adjective, intellect, sharpness) |
| smooth(adjective, intellect, sharpness) |
| sprightly(adjective, intellect, sharpness) |
| street smart(expression, intellect, sharpness) |
| streetwise(adjective, intellect, sharpness) |
| talented(adjective, intellect, sharpness) |
| tuned in(expression, intellect, sharpness) |
| up on(expression, intellect, sharpness) |
| versatile(adjective, intellect, sharpness) |
| wary(adjective, intellect, sharpness) |
| watchful(adjective, intellect, sharpness) |
| wise to(expression, intellect, sharpness) |
| wised up(expression, intellect, sharpness) |
| witty(adjective, intellect, sharpness) |
| worldly-wise(adjective, intellect, sharpness) |
| acuity(noun, skill, intelligence, intellect) |
| acuteness(noun, skill, intelligence, intellect) |
| aptitude(noun, skill, intelligence, intellect) |