| rapidly(adverb, fast, quickly, pronto) |
| swiftly(adverb, fast, quickly, rapidly, pronto) |
| fast(adverb, quickly, rapidly, pronto) |
| hastily(adverb, fast, quickly, rapidly, pronto) |
| quickly(adverb, fast, rapidly, pronto) |
| speedily(adverb, fast, quickly, rapidly, pronto) |
| apace(adverb, fast, quickly, rapidly, pronto) |
| directly(adverb, fast, quickly, rapidly, pronto) |
| hurriedly(adverb, fast, quickly, rapidly, pronto) |
| in haste(adverb, fast, quickly, rapidly, pronto) |
| at once(expression, adverb, quickly, rapidly, soon) |
| briskly(adverb, fast, quickly, rapidly, pronto) |
| immediately(adverb, quickly, rapidly, speedily, briskly) |
| in no time(expression, idiom, adverb, quickly, rapidly) |
| instantly |
| lickety-split(adverb, fast) |
| pronto(adverb, fast, quickly, rapidly) |
| right away |
| as soon as(expression, idiom, immediately, instant) |
| expeditiously(adverb, immediately, quickly, rapidly, soon) |