/ˌʌnˈzɪp ||; ʌnˈzɪp/verb [I,T] (unzipping;unzipped) if a bag, piece of clothing, etc unzips, or you unzip it, you open it by pulling on the device that fastens the opening (the zip) 拉开（拉链） [OPP] zip (up) 反义词为zip (up)