| hell-for-leather(adjective, informal, fast) |
| hurrying(adjective, fast) |
| in nothing flat(expression, hot, fast, quick, speedy) |
| industrious(adjective, regular, serious, practical, competent) |
| intelligent(adjective, activity, quick, flexible, timely) |
| keen(fast, rapid, swift) |
| light of heel(expression, idiom, velocity) |
| on the double(expression, hot, fast, quick, speedy) |
| passing(quick, speedy, hurried) |
| pronto(hot, fast, quick, rapid, nimble) |
| quick as lightning(expression, idiom, velocity) |
| quickly |
| reckless(quick, speedy, hurried) |
| short(adjective, fast, quick, summary, rapid) |
| slapdash(quick, speedy, hurried) |
| speedball(hot, fast, quick, summary, nimble) |
| superficial(quick, speedy, hurried) |
| supersonic(prompt, hot, fast, quick, rapid) |
| urgent(quick, speedy, hurried) |
| PDQ(hot, quick, rapid, nimble, speedy) |