precipitous
pre-cip-i-tous
adjective
Happening very quickly or suddenly, often without careful consideration.
"The firm saw a precipitous fall in profits."
adjective
Extremely steep, like a cliff or a sharp, dangerous drop.
"They faced a precipitous climb up the mountain."
Thesaurus
Synonyms: abrupt, sharp, steep, hurried, hasty, precipitate, overhasty, precipitant