| having the goods(expression, idiom, skilled, accomplished, talented) |
| having the right stuff(expression, idiom, skilled, accomplished, talented) |
| heads up(expression, adjective, sharp, bright, lively) |
| hep(cool, pleasant, fair, big, agreeable) |
| hooked(adjective, alert, careful, caring, thoughtful) |
| hot(expert, skilled, capable, skillful, adroit) |
| hotshot(expert, skilled, capable, skillful, adroit) |
| hunky-dory(cool, pleasant, fair, big, agreeable) |
| impeccable(right, perfect, exact, proper, true) |
| in the know(expression, adjective, idiom, smooth, keen) |
| in the swim(expression, idiom, cool, fair, agreeable) |
| informed(adjective, familiar, aware, well-informed) |
| intellectual(smart, bright, intelligent) |
| intense |
| interested(alert, intelligent, considerate, responsive, aware) |
| inventive(adjective, smart, bright, intelligent, clever) |
| jazzed(sharp, bright, lively, alert, attentive) |
| just(right, perfect, exact, proper, true) |
| know all the answers(expression, adjective, idiom, careful, knowledgeable) |
| know ins and outs(expression, adjective, idiom, careful, decent) |