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Adjective: impossible  im'pó-si-bul
  1. Not capable of occurring or being accomplished or dealt with
    "an impossible dream"; "an impossible situation"
     
  2. Totally unlikely
    "Whatever is inconceivable is impossible";
    - inconceivable, out of the question, unimaginable
     
  3. (of a person) very annoying or difficult to deal with
    "impossible behaviour";
    - insufferable, unacceptable, unsufferable
Noun: impossible  im'pó-si-bul
  1. Something that cannot be done
    "his assignment verged on the impossible"

Derived forms: impossibles

See also: hopeless, impracticable, impractical, infeasible, insurmountable, intolerable, out, possibility, possibleness, unachievable, unattainable, unbearable, undoable, unendurable, unfeasible, unrealisable [Brit], unrealistic, unrealizable, unsurmountable, unthinkable, unworkable

Type of: impossibility, impossible action

Antonym: possible

Encyclopedia: Impossible