xí fēi chéng shì
对某些错误事情习惯了,反以为本来就是对的。
西汉 扬雄《法言 学行》:“习乎习,以习非之胜是,况习是之胜非乎?”
习非成是连动式;作谓语、宾语;。
what becomes customary is accepted as right