pre·cip·i·tous /prɪˈsɪpətəs/
  (a.)陡峭的,急躁的
  Pre·cip·i·tous a.
  1. Steep, like a precipice; as, a precipitous cliff or mountain.
  2. Headlong; as, precipitous fall.
  3. Hasty; rash; quick; sudden; precipitate; as, precipitous attempts. --Sir T. Browne. “Marian's low, precipitous ‘Hush!'”
  -- Pre*cip*i*tous*ly, adv. -- Pre*cip*i*tous*ness, n.
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  precipitous
       adj 1: 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" [syn: hasty,
               overhasty, precipitate, precipitant]
       2: characterized by precipices; "a precipitous bluff"
       3: extremely steep; "an abrupt canyon"; "the precipitous rapids
          of the upper river"; "the precipitous hills of Chinese
          paintings"; "a sharp drop" [syn: abrupt, sharp]