| swiftly(adverb, immediately, quickly, rapidly, soon) |
| quickly(adverb, immediately, rapidly, soon, hastily) |
| rapidly(adverb, quick, early, quickly, hastily) |
| speedily(adverb, quick, early, immediately, quickly) |
| hastily(adverb, quick, early, immediately, quickly) |
| briskly(adverb, quickly, rapidly, hastily, speedily) |
| fast(adjective, early, immediately, quickly, rapidly) |
| posthaste(adjective, adverb, fast, quick, early) |
| expeditiously(adverb, quick, early, immediately, quickly) |
| promptly(adverb, quick, early, quickly, rapidly) |
| hurriedly(adverb, quick, quickly, rapidly, soon) |
| presto(quickly, rapidly, speedily) |
| quick(adjective, early, quickly, rapidly, soon) |
| snappily(adverb, soon, swiftly, posthaste) |
| abruptly(adverb, hastily) |
| apace(quick, quickly, rapidly, speedily) |
| flat-out(quick, immediately, quickly, rapidly, speedily) |
| full tilt(expression, adverb, quick, quickly, rapidly) |
| in haste(expression, quickly, rapidly, soon, snappily) |
| in nothing flat(expression, idiom, quickly, rapidly, soon) |