misopen

verb

1. To open what one should not open.

   “But this argument hadn't really been about trust, or homework, or misopened mail, and we both knew it.”

   “The fresh air hit him, and for a moment he could almost put a name on the stink that came out of the misopened gate.”

   “"Shen Yong, did you misopen the car?" Jiang Jing asked in confusion.”

2. To do a bad job of opening.

   “Tensely, Michael removed pieces of cork from a misopened bottle.”