| quick(adjective, adverb, fast, rapidly, soon) |
| expeditiously(adverb, immediately, rapidly, soon, hastily) |
| right away(verb, expression, adverb, phrasal verb, interjection) |
| suddenly(adverb, now, hastily, suddenly, unexpectedly) |
| chop-chop(adverb, fast, rapidly, pronto) |
| like a shot(idiom, adverb, fast, rapidly, pronto) |
| in haste(adverb, fast, rapidly, pronto) |
| sharply(adverb, cunningly, wittily, punctually) |
| straightaway(adverb, directly) |
| briefly(adjective, adverb, earliness) |
| posthaste(adjective, adverb, fast, immediately, rapidly) |
| presto(adverb, rapidly, speedily) |
| swift(adjective, rapidly, swiftly, snappily, speedily) |
| at speed(adverb, fast, rapidly, pronto) |
| double-quick(adverb, soon, hastily, swiftly, snappily) |
| fleetly(adverb, immediately, rapidly, soon, hastily) |
| full tilt(expression, idiom, adverb, fast, rapidly) |
| in no time(expression, idiom, adverb, rapidly, soon) |
| like greased lightning(expression, idiom, adverb, fast, rapidly) |
| readily |