a.

1. 不擔心的，不在乎的[（+about）]
   Tom seems quite unconcerned about his own future.

   湯姆似乎對自己的前途抱無所謂的態度。

2. 不感興趣的，漠不關心的[Z][F][（+with）]
   be unconcerned with politics

   對政治不感興趣

3. 無關的；未介入的[Z][F][（+with）]
   The report is unconcerned with details.

   報告未涉及細節。

adj.