资料来源 : Webster's Revised Unabridged Dictionary (1913)

Alien \Al"ien\, a. [OF. alien, L. alienus, fr. alius another;
   properly, therefore, belonging to another. See {Else}.]
   1. Not belonging to the same country, land, or government, or
      to the citizens or subjects thereof; foreign; as, alien
      subjects, enemies, property, shores.

   2. Wholly different in nature; foreign; adverse; inconsistent
      (with); incongruous; -- followed by from or sometimes by
      to; as, principles alien from our religion.

            An alien sound of melancholy.         --Wordsworth.

   {Alien enemy} (Law), one who owes allegiance to a government
      at war with ours. --Abbott.