| abrupt(adjective, keen, sharp, passionate, violent) |
| hasty(adjective, keen, energetic, passionate, violent) |
| unexpected(adjective, passionate, violent, careless, property) |
| quick(noun, adjective, passionate, violent, fast) |
| swift(adjective, passionate, violent, property, fast) |
| precipitate(noun, verb, adjective, sharp, passionate) |
| immediate(noun, adjective, fast, irritable, summary) |
| unforeseen(adjective, extraordinary, wonderful, quick, abrupt) |
| precipitous(adjective, sharp, violent, fast, quick) |
| impetuous(noun, adjective, keen, energetic, violent) |
| instantaneous(adjective, fast, summary, rapid, swift) |
| rash(noun, adjective, passionate, violent, impulsive) |
| fast(adjective, irritable, quick, abrupt, speedy) |
| hurried(adjective, fast, quick, surprise, abrupt) |
| headlong(noun, adjective, keen, sharp, passionate) |
| unanticipated(adjective, surprising, inexpectation) |
| acute(adjective, severe, intense, important, serious) |
| sharp(adjective, irritable, bad-tempered, abrupt, tetchy) |
| rapid(adjective, fast, quick, abrupt, speedy) |
| surprising(adjective, shock, wonderful, quick, shocking) |