| briskly(adverb, quickly, rapidly, speedily) |
| chop-chop(quickly, rapidly, soon, swiftly, snappily) |
| chop chop(expression, soon, swiftly, snappily, posthaste) |
| dash |
| expeditiously(adverb, quickly, rapidly, soon, swiftly) |
| flat-out(quickly, rapidly, speedily) |
| fleetly(quickly, rapidly, soon, swiftly, snappily) |
| full tilt(expression, quickly, rapidly, soon, swiftly) |
| hell-for-leather(adverb, fast) |
| immediately(quickly, rapidly, speedily) |
| impetuously |
| impulsively |
| in a flash(expression, idiom, quickly, rapidly, speedily) |
| in double time(expression, idiom, soon, swiftly, snappily) |
| in high gear(expression, idiom, soon, swiftly, snappily) |
| in no time(expression, idiom, adverb, quickly, rapidly) |
| lickety-split(adverb, fast) |
| lickety split(expression, soon, swiftly, snappily, posthaste) |
| like a bat out of hell(expression, idiom, soon, swiftly, snappily) |
| like greased lightning(expression, idiom, quickly, rapidly, soon) |