| astounding(adjective, speed, fast, rapid, pace) |
| boom(noun, increase, growth, intensive) |
| boost(noun, increase, growth, intensive) |
| breakneck(adjective, speed, fast, rapid, pace) |
| breathtaking(adjective, speed, fast, rapid, pace) |
| brisk(adjective, speed, fast, rapid, pace) |
| bustling(adjective, speed, fast, rapid, pace) |
| careering(adjective, speed, fast, rapid, pace) |
| double-quick(adjective, speed, fast, rapid, pace) |
| eager(adjective, speed, fast, rapid, pace) |
| exciting(adjective, speed, fast, rapid, pace) |
| expeditious(adjective, speed, fast, rapid, pace) |
| explosion(noun, increase, growth, intensive) |
| eye-opening(adjective, shocking, astonishing, unforeseen, unanticipated) |
| fabulous(adjective, speed, fast, rapid, pace) |
| fast(adjective, speed, rapid, pace) |
| fast-breaking(adjective, speed, fast, rapid, pace) |
| fleet(adjective, speed, fast, rapid, pace) |
| flourishing(adjective, speed, fast, rapid, pace) |
| flying(adjective, speed, fast, rapid, pace) |