listen to the pronunciation of precipitous
Englisch - Englisch
Headlong; as, precipitous fall
Steep, like a precipice; as, a precipitous cliff or mountain
Hasty; rash; quick; sudden; precipitate; as, precipitous attempts

humans have been responsible for a precipitous decline of elephants, from perhaps 300,000 in the early 1970s to some 10,000 today.

{a} hasty, tending to danger, steep
A precipitous action happens very quickly and often without being planned. a precipitous decision. + precipitously pre·cipi·tous·ly They've got to act precipitously to make the deals
extremely steep; "an abrupt canyon"; "the precipitous rapids of the upper river"; "the precipitous hills of Chinese paintings"; "a sharp drop"
characterized by precipices; "a precipitous bluff
characterized by precipices; "a precipitous bluff"
A precipitous change is sudden and unpleasant. The stock market's precipitous drop frightened foreign investors + precipitously pre·cipi·tous·ly The company has seen its profits fall precipitously over the past few years
A precipitous slope or drop is very steep and often dangerous. The town is perched on the edge of a steep, precipitous cliff. + precipitously pre·cipi·tous·ly The ground beyond the road fell away precipitously
{s} very steep, having a high degree of inclination, nearly vertical, sheer
done with very great haste and without due deliberation; "hasty marriage seldom proveth well"- Shakespeare; "hasty makeshifts take the place of planning"- Arthur Geddes; "rejected what was regarded as an overhasty plan for reconversion"; "wondered whether they had been rather precipitate in deposing the king"
abruptly; in a precipitous manner
very suddenly and to a great degree; "conditions that precipitously increase the birthrate"; "prices rose sharply"
very suddenly and to a great degree; "conditions that precipitously increase the birthrate"; "prices rose sharply
steeply, with a high gradient of inclination, almost vertically, sheerly
abruptly; in a precipitous manner; "the mountains rose precipitously from the shore"
{i} steepness, quality of being nearly vertical, sheerness