im·pos·si·ble /(ˌ)ɪmˈpɑsəbəl/
  (a.)不可能的,不容易的,令人無法忍受的
  Im·pos·si·ble, n. An impossibility; as, he tried to do the impossible. [Obs.]
     =\“Madam,” quoth he, “this were an impossible!”\=   --Chaucer.
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  Im·pos·si·ble a.  Not possible; incapable of being done, of existing, etc.; unattainable in the nature of things, or by means at command; insuperably difficult under the circumstances; absurd or impracticable; not feasible.
     With men this is impossible; but with God all things are possible.   --Matt. xix. 26.
     Without faith it is impossible to please him.   --Heb. xi. 6.
  Impossible quantity Math., an imaginary quantity. See Imaginary.
  Syn: -- See Impracticable.
  impossible
       adj 1: not capable of occurring or being accomplished or dealt
              with; "an impossible dream"; "an impossible situation"
              [ant: possible]
       2: totally unlikely [syn: inconceivable, out of the question,
           unimaginable]
       3: used of persons or their behavior; "impossible behavior";
          "insufferable insolence" [syn: insufferable, unacceptable,
           unsufferable]
       n : something that cannot be done; "his assignment verged on the
           impossible"