| swift(adjective, adverb, direct, express, prompt) |
| rapid(adjective, direct, keen, express, prompt) |
| hasty(adjective, time, express, prompt, passionate) |
| fast(adjective, adverb, direct, express, firm) |
| speedy(adjective, direct, express, prompt, energetic) |
| brisk(adjective, pleasant, keen, sharp, ability) |
| clever(adjective, cool, smooth, sharp, ability) |
| sharp(adjective, characteristic, feeling, understanding, cool) |
| intelligent(adjective, smart, sharp, bright, lively) |
| smart(adjective, feeling, understanding, cool, smooth) |
| fleet(noun, adjective, sharp, property, lively) |
| active(adjective, activity, pleasant, keen, sharp) |
| nimble(adjective, keen, sharp, ability, smart) |
| agile(adjective, keen, sharp, ability, smart) |
| alert(verb, adjective, characteristic, understanding, pleasant) |
| immediate(noun, adjective, adverb, express, prompt) |
| lively(adjective, characteristic, feeling, pleasant, keen) |
| keen(adjective, characteristic, feeling, understanding, pleasant) |
| expeditious(adjective, adverb, express, prompt, property) |
| prompt(adjective, adverb, smooth, easy, sharp) |