un·con·cern
noun/ˌʌnkənˈsɜːn/
/ˌʌnkənˈsɜːrn/
[uncountable] (formal)- a lack of care, interest or worry about something that other people would care about
冷漠；不关心；无兴趣 - She received the news with apparent unconcern.
她接到这消息时显然无动于衷。
- She received the news with apparent unconcern.