unbolted

1. He unbolted the shackles on Billy's hands.
   他打开了比利的手铐。
2. If you really plan to push away my heart left unlocked or unbolted, whether you have already had enough courage.
   如果你真的打算推开我这一扇虚掩的心扉，你是否已有了足够的勇气。
3. The door unbolted, whacked back against the wall.
   门打开时，吧嗒一声门儿碰着墙。

adj

1. not firmly fastened or secured
   1. an unbarred door
   2. went through the unlatched gate into the street
   3. an unlocked room

   Synonym:    unbarredunlatchedunlockedunsecured