indifferent
adjective uk/ɪnˈdɪf.ər.ənt/ us/ɪnˈdɪf.ɚ.ənt/
(NOT INTERESTED)
C2 不感兴趣;不关心，冷淡
not thinking about or interested in someone or something
Why don't you vote - how can you be so indifferent (to what is going on)? 你为什么不投票？你怎能（对正在发生的事情）如此漠不关心！
He found it very hard teaching a class full of indifferent teenagers. 他发觉教一班无动于衷的十几岁的孩子真是头疼。
(NOT GOOD)
中等的，一般的
not good, but not very bad
We didn't like the restaurant much - the food was indifferent and the service rather slow. 我们不怎么喜欢这家餐馆——饭菜一般，上菜也相当慢。