unopened

详细解释:a. 没有开的, 未展开的, 未启封的

英语解释：

形容词 unopened:

not yet opened or unsealed

例句：

If this card is returned unopened I'll know you aren't ready to reconcile yet, and I'll try again next year.如果这张卡片原封退回，我明白你还不愿和解，那我将等到来年再试。