The Chinese word "冠冕堂皇" is formed by combining two two-character compounds: "冠冕", which refers to crowns and coronets symbolizing formal authority, and "堂皇", which denotes stateliness or grandeur, often associated with imperial halls. This juxtaposition creates a four-character idiom that literally depicts royal regalia and palaces, and figuratively conveys a sense of high-sounding but insincere impressiveness.