unconcern

名词 unconcern:

1. the trait of remaining calm and seeming not to care; a casual lack of concern
   同义词：nonchalance, indifference
2. a feeling of lack of concern

1. Marked by blithe unconcern; nonchalant.
   漫不经心的; 漠不关心的
2. She heard the news of his death with apparent unconcern.
   她听到他的死讯无动於衷。