| quick(adjective, adverb, activity, express, prompt) |
| speedy(adjective, express, prompt, hot, fast) |
| swift(adjective, activity, express, prompt, hot) |
| rapid(adjective, express, prompt, hot, fast) |
| fast(adjective, activity, prompt, fast, quick) |
| fleet(noun, adjective, hot, fast, quick) |
| prompt(adjective, activity, fast, quick, responsive) |
| hasty(adjective, prompt, hot, fast, quick) |
| brisk(adjective, prompt, hot, fast, quick) |
| punctual(adjective, characteristic, time, quality, timing) |
| nimble(adjective, prompt, hot, fast, quick) |
| ready(adjective, activity, express, prompt, active) |
| active(adjective, express, hot, fast, quick) |
| express(verb, adjective, fast, quick, velocity) |
| alert(adjective, activity, keen, energetic, active) |
| breakneck(adjective, hot, fast, quick, speedy) |
| immediate(adjective, keen, express, prompt, energetic) |
| agile(adjective, prompt, hot, fast, quick) |
| efficient(adjective, regular, quick, serious, responsive) |
| instant(adjective, activity, prompt, fast, precise) |