漆黑一团

Explanation: Described as a dark, with no light. Knew nothing of the matter is also described. 　　Usage: Predicate; as predicate, attributive; with derogatory 　　Source: Lu Xun's "Letters To Yao Ke": "Youth culture has little versed in foreign countries who have something difficult to open, which makes utterly hopeless." 　　Examples: Whether in the past century and ancient Chinese history, in the eyes of many party members still ~. (Mao Zedong's "transformation of our learning") 　　Riddle: Briquettes; ball ink Thesaurus:  gray dark, Heidengxiahuo, Black lamp fire, Touch to the black days, dottiness Antonym Group:   cast its radiance far and wide, shining in all directions, Black and white, regardless of, Black and white reversed, dazzled by a riot of colour, Moweimobian