The Collaborative International Dictionary of English v.0.48:

Outlander \Out"land*er\, n.
   A foreigner. --Wood.
   [1913 Webster]

WordNet (r) 3.0 (2006):

outlander
    n 1: a person who comes from a foreign country; someone who does
         not owe allegiance to your country [syn: foreigner,
         alien, noncitizen, outlander] [ant: citizen]

Moby Thesaurus II by Grady Ward, 1.0:

19 Moby Thesaurus words for "outlander":
   Uitlander, alien, auslander, barbarian, deracine, displaced person,
   emigre, exile, foreign devil, foreigner, gringo, outlaw, outsider,
   refugee, stranger, the Wandering Jew, tramontane, ultramontane,
   wanderer