Directorial means relating to the job of being a film or theatre director.
例句
In the later stages of his directorial career, Orson Welles began work on several ambitious films.在其导演生涯的后半阶段，奥森·韦尔斯开始执导起了几部恢宏巨制。...Sam Mendes' directorial debut.萨姆·门德斯执导的处女作