| abrupt(adjective, sharp, course, quick, impulsive) |
| steep(adjective, sharp, course, extreme, quick) |
| sheer(adjective, smooth, sharp, solid, level) |
| sudden(adjective, sharp, violent, fast, quick) |
| hasty(adjective, violent, fast, quick, thoughtless) |
| precipitate(verb, adjective, sharp, fast, course) |
| sharp(adjective, course, quick, rash, steep) |
| precipitant(noun, adjective, violent, fierce, quick) |
| perpendicular(adjective, smooth, sharp, solid, level) |
| bluff(noun, adjective) |
| headlong(adjective, sharp, fast, course, quick) |
| overhasty(adjective, impulsive, reckless, hasty) |
| quick(adjective, unusual, fast, rash, abrupt) |
| arduous(adjective, sharp, course, quick, rash) |
| high(adjective, sharp, course, quick, rash) |
| impetuous(adjective, quick, impulsive, thinking, rash) |
| bold(adjective, impulsive, reckless, hasty, horizontal) |
| immediate(adjective, sudden, instantaneity) |
| rapid(adjective, unusual, fast, quick, abrupt) |
| rash(adjective, violent, fierce, quick, ardent) |