adj.不注意的，不留心的，漫不经心的

He was so absorbed in his book that he was completely unmindful of the traffic around him.
他全神贯注于看书，对周围的车流完全视而不见。
She walked off with my phone, totally unmindful of her own belongings lying on the table.
她拿走了我的手机，完全没有注意到自己放在桌上的东西。
The child played recklessly, unmindful of the broken glass on the floor.
孩子不顾一切地玩耍，没有注意到地板上的碎玻璃。
In his haste, he left the door unlocked, unmindful of the potential danger.
由于匆忙，他忘记锁门，没有意识到可能存在的危险。
The tourists were so enthralled by the scenery that they were unmindful of their surroundings.
游客们被美景深深吸引，对周围环境毫不在意。
She was so caught up in her thoughts that she was unmindful of her friend's attempts to get her attention.
她沉浸在自己的思绪中，没有注意到朋友试图引起她的注意。
The driver was talking on his phone, completely unmindful of the speed limit.
司机在打电话，完全没有注意到速度限制。
He walked into the room, unmindful of the "Do Not Disturb" sign on the door.
他走进房间，没有注意到门上挂着的“请勿打扰”标志。
She spent hours shopping, completely unmindful of the time or her mounting expenses.
她逛了好几个小时，丝毫没有留意时间或者不断增加的花费。
The professor was so engrossed in his lecture that he was unmindful of the class running over its scheduled time.
教授专注于他的讲座，以至于没有注意到课程超出了预定的时间。