| know all the answers(expression, adjective, idiom, careful, knowledgeable) |
| know stuff(expression, adjective, striking, stupendous, zany) |
| know the ropes(expression, adjective, idiom, decent, adequate) |
| knowing(adjective, careful, knowledgeable, cautious, aware) |
| knowledgeable(adjective, careful, cautious, aware, attentive) |
| mindful(adjective, aware, attentive, wary, watchful) |
| no slouch(expression, adjective, decent, adequate, qualified) |
| observant(adjective, careful, knowledgeable, cautious, aware) |
| observative(adjective, careful, knowledgeable, cautious, aware) |
| observing(adjective, careful, knowledgeable, cautious, aware) |
| on the ball(expression, adjective, idiom, careful, decent) |
| on the job(expression, adjective, idiom, careful, knowledgeable) |
| on to(expression, adjective, careful, aware, attentive) |
| pertinent(adjective, decent, knowledgeable, adequate, qualified) |
| plugged in(expression, adjective, careful, aware, attentive) |
| polished(adjective, decent, knowledgeable, adequate, qualified) |
| proficient(adjective, decent, knowledgeable, adequate, qualified) |
| qualified(adjective, decent, knowledgeable, adequate, capable) |
| regardful(adjective, careful, knowledgeable, cautious, aware) |
| respectful(adjective, careful, knowledgeable, cautious, aware) |