An ~ rule, principle, or tax is one that does not work any more or that cannot be made to work. (FORMAL)
ADJ
An ~ rule, principle, or tax is one that does not work any more or that cannot be made to work. (FORMAL)
ADJ
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012