| cracking(summary, abrupt, rapid, unexpected, instant) |
| dashing(hot, quick, rapid, nimble, speedy) |
| directly(now, immediately, rapidly, instantly, today) |
| double-quick(summary, abrupt, showy, rapid, unexpected) |
| electric(hot, quick, rapid, nimble, speedy) |
| expeditiously(directly, immediately, quickly, rapidly, soon) |
| express(fast, quick, summary, brisk, hasty) |
| flashing(hot, quick, rapid, nimble, speedy) |
| flat-out(quickly, rapidly, speedily) |
| fleet-footed(summary, abrupt, showy, rapid, unexpected) |
| fleeting(hot, quick, rapid, nimble, speedy) |
| fleetly(quickly, rapidly, soon, swiftly, snappily) |
| full tilt(expression, quickly, rapidly, soon, swiftly) |
| hairtrigger(hot, quick, rapid, nimble, speedy) |
| hastily(quickly, rapidly, speedily) |
| hereupon(directly, immediately, rapidly, instantly, shortly) |
| hot(quick, rapid, nimble, speedy, brisk) |
| hurriedly(quickly, rapidly, soon, swiftly, snappily) |
| hypersonic(hot, quick, rapid, nimble, speedy) |
| immediately(now, directly, quickly, rapidly, today) |