形容词

1. 漠不关心的；淡漠的；不在意的
If a person is unconcerned about something, usually something that most people would care about, they are not interested in it or worried about it.

1. lacking in interest or care or feeling

e.g. the average American...is unconcerned that his or her plight is the result of a complex of personal and economic and governmental actions...beyond the normal citizen's comprehension and control
blithely unconcerned about his friend's plight

2. not occupied or engaged with

e.g. readers unconcerned with style

3. easy in mind
not worried

e.g. the prisoner seems entirely unconcerned as to the outcome of the examination