At which a given function is positive.
That grants permission or power to do something.
Able to perform a particular life function, or to live generally, in more than one way.
Of or relating to faculty, especially to mental faculty.
Not obligate; optional, discretionary or elective.
Distinguished by a positive feature.
Singled out; suspicious; treated with hostility; the object of vengeance.
Having a secret mark on the back for cheating.
Clearly evident; noticeable; conspicuous.
In police livery, as opposed to unmarked.
Having a visible or identifying mark.