a situation in which behaviour that some people might disapprove of is allowed

She attributed the social and economic problems of the 1980s to the permissiveness of the 1960s. 她将20世纪80年代的社会经济问题归咎于20世纪60年代社会的宽容放任。

He remembers his youth as being an era of sexual permissiveness. 在他的记忆里，年轻时代是性开放时代。