precipitous

As a verb prone

is .

As an adjective precipitous is

steep, like a precipice; as, a precipitous cliff or mountain.

As adjectives the difference between precipitous and preposterous

is that precipitous is steep, like a precipice; as, a precipitous cliff or mountain while preposterous is absurd, or contrary to common sense.

As adjectives the difference between precarious and precipitous

is that precarious is (comparable) dangerously insecure or unstable; perilous or precarious can be (dentistry) relating to incipient caries while precipitous is steep, like a precipice; as, a precipitous cliff or mountain.

As adjectives the difference between precipitous and formidable

is that precipitous is steep, like a precipice; as, a precipitous cliff or mountain while formidable is causing fear, dread, awe or admiration as a result of size, strength, or some other impressive quality; commanding respect; causing wonder or astonishment.

As adjectives the difference between majestic and precipitous

is that majestic is having qualities of splendor or royalty while precipitous is steep, like a precipice; as, a precipitous cliff or mountain.

As adjectives the difference between precipitous and capricious

is that precipitous is steep, like a precipice; as, a precipitous cliff or mountain while capricious is impulsive and unpredictable; determined by chance, impulse, or whim.

As adjectives the difference between perpendicular and precipitous

is that perpendicular is at or forming a right angle (to) while precipitous is steep, like a precipice; as, a precipitous cliff or mountain.

As a noun perpendicular

is a line or plane that is perpendicular to another.

As a noun mainstream

is mainstream.

As an adjective precipitous is

steep, like a precipice; as, a precipitous cliff or mountain.

As adjectives the difference between early and precipitous

is that early is at a time in advance of the usual or expected event while precipitous is steep, like a precipice; as, a precipitous cliff or mountain.

As an adverb early

is at a time before expected; sooner than usual.

As a noun early

is a shift (scheduled work period) that takes place early in the day.

As adjectives the difference between impulsive and precipitous

is that impulsive is having the power of driving or impelling; giving an impulse; moving; impellent while precipitous is steep, like a precipice; as, a precipitous cliff or mountain.

As a noun impulsive

is that which impels or gives an impulse; an impelling agent.