| in nothing flat(expression, idiom, hot, fast, quick) |
| posthaste(hot, fast, quick, nimble, speedy) |
| snappily(adverb, quickly, soon, swiftly, posthaste) |
| without delay(expression, adverb, directly, immediately, rapidly) |
| PDQ(hot, quick, speedy, directly, immediately) |
| accelerated(hot, fast, quick, speedy, brisk) |
| active(hot, fast, quick, nimble, speedy) |
| agile(hot, fast, quick, nimble, speedy) |
| apace(quickly, rapidly, speedily) |
| asap(fast, rapid, swift) |
| at once(expression, adverb, directly, immediately, rapidly) |
| at short notice(expression, adverb, directly, rapidly, instantly) |
| at the double(expression, idiom, adverb, quickly, rapidly) |
| away(adverb, now, directly, immediately, rapidly) |
| breakneck(hot, fast, quick, nimble, speedy) |
| brisk(hot, fast, quick, nimble, speedy) |
| chop-chop(adverb, hot, quick, nimble, speedy) |
| directly(adverb, now, immediately, rapidly, instantly) |
| double-quick(noun, summary, abrupt, rapid, unexpected) |
| expeditious(hot, fast, quick, nimble, speedy) |