| dire(adjective, severe, firm, prompt, big) |
| hurried(adjective, quick, speedy, hasty, sudden) |
| life-or-death(adjective, important, essential, critical, basic) |
| needful(adjective, significant, essential, basic, vital) |
| obligatory(adjective, important, significant, essential, critical) |
| pivotal |
| significant(adjective, clear, tough, severe, big) |
| speedy(adjective, direct, quick, hasty, instant) |
| strong(adjective, clear, cruel, vicious, ardent) |
| swift(adjective, quick, speedy, hasty, sudden) |
| abrupt(adjective, direct, quick, hasty, instant) |
| ardent(adjective, strong, passionate, sincere, desirous) |
| breathless(adjective, hasty, haste) |
| compulsory(adjective, important, significant, essential, critical) |
| dangerous(adjective, bad, severe, significant, serious) |
| emphatic |
| fast(adjective, direct, prompt, quick, hasty) |
| firm |
| forceful(adjective, clear, firm, passionate, powerful) |
| impulsive(adjective, extreme, quick, speedy, sudden) |