| discerning(adjective, keen, sharp, smart, bright) |
| effective(bright, sharp-witted, quick-thinking) |
| effectual(bright, sharp-witted, quick-thinking) |
| expert(skilled, capable, skillful, adroit, meritable) |
| hot(expert, skilled, capable, skillful, adroit) |
| hotshot(smart, expert, skilled, capable, skillful) |
| keen(adjective, sharp, smart, active, intelligent) |
| know stuff(expression, smart, expert, skilled, capable) |
| knowing(keen, smart, bright, intelligent, shrewd) |
| masterful(expert, skilled, capable, skillful, adroit) |
| masterly(expert, skilled, capable, skillful, adroit) |
| nimble-witted(smart, bright, intelligent, clever, skillful) |
| no dummy(expression, smart, expert, skilled, capable) |
| no slouch(expression, smart, expert, skilled, capable) |
| on the beam(expression, idiom, smart, skilled, capable) |
| perceptive(keen, smart, bright, intelligent, shrewd) |
| perspicacious(adjective, keen, sharp, smart, bright) |
| practiced(expert, skilled, capable, skillful, adroit) |
| proficient(smart, expert, skilled, capable, skillful) |
| prompt(smart, bright, intelligent, clever, slick) |