impracticability編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看impracticabilityimpracticability — 名詞名詞1. the quality of being impossible to do or carry out1.名詞釋義不可行性the quality of being impossible to do or carry out例句The impracticability of the plan soon became clear.