| hasty(adjective, quick, speedy, hasty, sudden) |
| indispensable(adjective, important, significant, serious, essential) |
| weighty(adjective, clear, hard, great, tough) |
| crying(adjective, firm, informal, prompt, big) |
| eager(adjective, characteristic, strong, careless, quick) |
| persistent(adjective, continue) |
| time-sensitive |
| acute(adjective, severe, heavy, important, significant) |
| anxious |
| burning(adjective, firm, informal, prompt, big) |
| emergency(noun, adjective) |
| momentous(adjective, clear, tough, severe, big) |
| quick(adjective, prompt, fast, hasty, immediate) |
| required(adjective, important, significant, essential, critical) |
| violent(adjective, intense, cruel, vicious, extreme) |
| clamant(adjective, firm, prompt, important, fast) |
| driving(adjective, property, needing) |
| high-priority |
| imperious |
| life-and-death(adjective, heavy, important, serious, critical) |