Someone or something that is ~ has a lot of influence over people or events.
He had been ~ in shaping economic policy.
...one of the most ~ books ever written.
ADJ: oft ADJ in -ing
Someone or something that is ~ has a lot of influence over people or events.
He had been ~ in shaping economic policy.
...one of the most ~ books ever written.
ADJ: oft ADJ in -ing
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012