de·tached

[dih-tacht]

–adjective

1. not attached; separated: a detached ticket stub.

2. having no wall in common with another building ( opposed to attached): a detached house.

3. impartial or objective; disinterested; unbiased: a detached judgment.

4. not involved or concerned; aloof.

—Synonyms
3.   uninvolved, neutral, evenhanded, dispassionate, unprejudiced.