不简单 bùjiǎndān complicated Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: complicated All meanings 2 bùjiǎndān 2 complicated 1remarkable 1 1 sentence for 不简单 (bùjiǎndān — complicated) 这件事情背后的背景很不简单。 zhè jiàn shìqing bèihòu de bèijǐng hěn bùjiǎndān. The background behind this matter is quite complex. Source: Dong Chinese Dictionary