im·prac·ti·ca·ble /ɪmˈpræktɪkəbəl/ adjectiveadj formal IMPOSSIBLEimpossible or very difficult to do for practical reasons 不切实际的;不可行的 It was an appealing plan but quite impracticable. 这个计划有吸引力,但完全行不通。
—impracticably adverbadv
—impracticability /ɪmˌpræktɪkəˈbɪləti/ noun [uncountableU]