un·do·ing /ˌʌnˈduːɪŋ/ n. 1. 毁灭；垮台；崩溃 This uncompromising attitude may have led to his undoing. 可能就是这种不妥协态度导致了他的垮台。 2. 毁灭(或垮台、失败)的原因 Drink was his undoing. 他之所以堕落就是因为酗酒。 3. 取消；废除；撤销；消除 There can be no undoing of the injury done to him. 他所受的伤害难以消除了。 4. 解开；松开；打开；拆开 the undoing of a parcel 拆开包裹 5. 【心】无为(精神分析中通常指一种强迫性神经机能病症状)