disappearing act noun (亦作 disappearing trick)(informal)an instance of someone being impossible to find, especially when they are required to face something difficult or unpleasant (非正式)(尤指需面对困难或不愉快的事情时)(某人的)消失,不见踪影 I don't want you doing a disappearing act on me. 我可不希望你跟我玩失踪的把戏。