| quick(adjective, adverb, direct, express, prompt) |
| rapid(adjective, direct, express, prompt, energetic) |
| speedy(adjective, direct, express, prompt, hot) |
| fast(adjective, adverb, open, light, direct) |
| fleet(noun, adjective, sharp, hot, fast) |
| hasty(adjective, express, prompt, passionate, violent) |
| brisk(adjective, sharp, hot, fast, quick) |
| prompt(adjective, sharp, express, energetic, alert) |
| expeditious(adjective, express, prompt, hot, fast) |
| nimble(adjective, smart, prompt, hot, fast) |
| immediate(adjective, keen, express, prompt, energetic) |
| abrupt(adjective, passionate, violent, fast, quick) |
| ready(adjective, express, prompt, hot, alert) |
| breakneck(adjective, hot, fast, quick, speedy) |
| instantaneous(adjective, fast, precise, responsive, summary) |
| agile(adjective, hot, fast, quick, velocity) |
| hurried(adjective, express, prompt, violent, hot) |
| sudden(adjective, passionate, violent, fast, quick) |
| express(verb, adjective, direct, keen, prompt) |
| snappy(adjective, hot, fast, quick, rapid) |