insensitive

形容词 insensitive:

1. not responsive to physical stimuli
2. deficient in human sensibility; not mentally or morally sensitive

1. I was annoyed by his insensitive remarks.
   我听了他那些没分寸的话，心里很不痛快。
2. It bothers me that he can be so insensitive.
   他这样麻木不仁，我心里很不痛快。
3. He is insensitive to the environment.
   他对环境感觉不敏锐。

in.sen.si.tive

adj.（形容词）
Not physically sensitive; numb.
无生理感觉的；麻木的

Lacking in sensitivity to the feelings or circumstances of others; unfeeling.
不敏感的，麻木不仁的：对他人的感情或情况缺乏敏感性；缺乏感觉的
Lacking in responsiveness:
缺乏反应的：
例句：
insensitive to the needs of the customers.
对顾客的要求不敏感

【引伸】
insen.sitively
adv.（副词）
insen.sitiv.ity 或
insen.sitiveness
n.（名词）