lackadaisical /ˌlækəˈdeɪzɪkəl/

• 1.  

  ADJ（形容词） If you say that someone is lackadaisical, you mean that they are rather lazy and do not show much interest or enthusiasm in what they do. 怠惰的; 不热衷的

  例：

  Dr. Jonsen seemed a little lackadaisical at times.

  琼森医生有时候似乎有点懈怠。