| aware(adjective, understanding, keen, sensible, perceptive) |
| knowing(adjective, keen, sharp, ability, smart) |
| knowledgeable(adjective, understanding, keen, sharp, bright) |
| prudent(adjective, sharp, intelligent, wise, clever) |
| sage(adjective, understanding, smooth, keen, sharp) |
| clear-sighted(adjective, sharp, sensible, sensitive, wise) |
| quick-witted(adjective, sharp, smart, intelligent, clever) |
| sensible(adjective, sound, smooth, sharp, intelligent) |
| bright(adjective, keen, sharp, smart, active) |
| incisive(adjective, understanding, keen, sharp, smart) |
| politic(adjective, sensible, intelligent, wise, shrewd) |
| savvy(adjective, sharp, ability, smart, informal) |
| discreet(adjective, understanding, keen, sharp, smart) |
| insightful(adjective, understanding, smooth, keen, sharp) |
| sapient(adjective, smooth, reasonable, sharp, smart) |
| sharp-witted(adjective, sharp, smart, bright, wise) |
| brainy(adjective, keen, sharp, smart, intelligent) |
| circumspect(adjective, sound, reasonable, smart, clever) |
| collected(sound, reasonable, sensible, intellectual, mental) |
| observant(adjective, person, understanding, keen, sharp) |