| active(quick, rapid, nimble, speedy) |
| agile(adjective, quick, rapid, nimble) |
| blue streak(expression, quick, nimble, speedy) |
| double-time(quick, rapid, nimble, speedy) |
| electric(quick, rapid, nimble, speedy) |
| expeditive(quick, rapid, nimble, speedy) |
| flashing(quick, rapid, nimble, speedy) |
| flying(quick, rapid, nimble, speedy) |
| hairtrigger(quick, rapid, nimble, speedy) |
| hurried(quick, rapid, nimble, speedy) |
| hypersonic(quick, rapid, nimble, speedy) |
| lickety split(expression, quick, nimble, speedy) |
| like a bat out of hell(expression, idiom, quick, nimble) |
| like all get out(expression, idiom, quick, nimble) |
| like crazy(expression, quick, nimble, speedy) |
| like mad(expression, quick, nimble, speedy) |
| on the double(expression, idiom, quick, nimble) |
| racing(quick, rapid, nimble, speedy) |
| ready(quick, rapid, nimble, speedy) |
| snap(quick, rapid, nimble, speedy) |