foreign

Not belonging to that in which it is contained; introduced from an outside source.

“foreign particles in milk”

Relating to or originating in or characteristic of another place or part of the world.

“foreign nations”

“a foreign accent”

Not contained in or deriving from the essential nature of something.

“the mysticism so foreign to the French mind and temper”

“jealousy is foreign to her nature”

Of concern to or concerning the affairs of other nations (other than your own).

“foreign trade”

“a foreign office”