| competent(adjective, keen, sharp, smart, bright) |
| dexterity(noun, knowledge, ability, experience, skill) |
| diplomacy(noun, style, skill, kindness, grace) |
| esprit |
| familiar(adjective, cool, sensible, alert, wise) |
| foxy(adjective, smooth, keen, sharp, smart) |
| grace(noun, style, skill, poise, elegance) |
| in the know(expression, adjective, idiom, cool, smooth) |
| insightful(adjective, understanding, keen, sharp, smart) |
| judicious(adjective, understanding, smooth, keen, sharp) |
| keenness(noun, wisdom, discrimination, prudence, discernment) |
| learn(verb, get, accept, follow, grasp) |
| on the ball(expression, adjective, idiom, smooth, keen) |
| perceptiveness(noun, understanding, mind, grasp, sense) |
| percipient(adjective, understanding, keen, sensitive, wise) |
| quick-witted(adjective, sharp, smart, bright, informal) |
| quickness(noun, understanding, knowledge, ability, experience) |
| reason(noun, understanding, knowledge, mind, grasp) |
| sagaciousness(understanding, sense, wisdom, nerve, shrewdness) |
| sage(adjective, understanding, keen, sensitive, familiar) |