unwind If you unwind something that is wrapped around an object, you unfasten it, and if it unwinds, it becomes unfastened. 解开，打开，松开(卷绕之物) to unwind a ball of string 解开一团绳 He unwound his scarf from his neck. 他从脖子上解下围巾。 The bandage gradually unwound and fell off. 绷带逐渐松开脱落了。