WordNet sense 1 (coming from the outside):

extraneous

WordNet sense 2 (from or between other countries):

international

WordNet sense 3 (of concern to or concerning the affairs of other nations (other than your own)):

foreign

WordNet sense 4 (relating to physical reality rather than with thoughts or the mind):

outward

WordNet sense 5 (originating or belonging beyond some bounds:):

outside