lackadaisical

1. ADJ 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; 不熱衷的

Dr. Jonsen seemed a little lackadaisical at times. 瓊森醫(yī)生有時候似乎有點懈怠。

...the lackadaisical attitude of a number of the principal players. ...幾名主力隊員的懶散態(tài)度。