| pronto(adverb, quick, speedy, directly) |
| PDQ(quick, nimble, speedy, directly) |
| double-time(quick, nimble, speedy, directly) |
| in nothing flat(expression, quick, speedy, directly) |
| on the double(expression, quick, speedy, directly) |
| presto(quick, first, nimble, speedy) |
| accelerated(quick, rapid, speedy) |
| active(quick, rapid, nimble, speedy) |
| agile(quick, rapid, nimble, speedy) |
| blue streak(expression, quick, nimble, speedy) |
| breakneck(quick, rapid, nimble, speedy) |
| brisk(quick, rapid, nimble, speedy) |
| chop-chop(quick, rapid, nimble, speedy) |
| dashing(quick, rapid, nimble, speedy) |
| electric(quick, rapid, nimble, speedy) |
| expeditious(quick, rapid, nimble, speedy) |
| expeditive(quick, rapid, nimble, speedy) |
| flashing(quick, rapid, nimble, speedy) |
| fleet(quick, rapid, nimble, speedy) |
| fleeting(quick, rapid, nimble, speedy) |