渺无踪影

Explanation: Traces and shadows look a little less than 　　Usage: Verb-object type; as predicate, adverbial; containing derogatory 　　Source: SD State Amount "Night with the recorded Huo Tan Yun": "Yichun, Ruier, vague and without a trace." 　　Examples: Eyes wide open, staring at the corner of the rat holes Wang Ran, to recall fond dreams of last night's upside down, but - have been vague and without it anyway. ★ Mao Dun, "Corrosion 13 November" Thesaurus:  Boundless Radiator