茫无端绪

Explanation: No idea, the lack of structured chaos 　　Usage: Supplemental; in the predicate; refers to the things no clue 　　Source: Qing Ji Yun "Luan Yang Yue Wei Cao Tang notes recorded five Summer": "Men do not know what unsolicited, nor the know, and research to ask the neighborhood, indiscriminate Duanxu." Thesaurus:  be at a loss; be confused and without a clue; tangled