| promptly(adverb, fast, quickly, rapidly, pronto) |
| straightaway |
| chop-chop(adverb, fast, quickly, rapidly, pronto) |
| instantaneously(adverb, fast, quickly, rapidly, pronto) |
| like greased lightning(expression, idiom, adverb, quickly, snappily) |
| like lightning(expression, adverb, quickly, rapidly, speedily) |
| straight off |
| abruptly(adverb, fast, quickly, rapidly, pronto) |
| alacrity |
| at speed(adverb, fast, quickly, rapidly, pronto) |
| double-quick(adverb, soon, swiftly, snappily, posthaste) |
| flat |
| flat out(adverb, fast) |
| fleetly(immediately, quickly, rapidly, soon, swiftly) |
| full tilt(expression, immediately, quickly, rapidly, snappily) |
| in a flash(expression, idiom, adverb, quickly, rapidly) |
| in a hurry(adverb, fast, quickly, rapidly, pronto) |
| in a rush(adverb, fast, quickly, rapidly, pronto) |
| in nothing flat(expression, idiom, quickly, rapidly, soon) |
| in short order(expression, idiom, quickly, rapidly, soon) |