antipodal

from WordNet (r) 3.0 (2006)

antipodal
    adj 1: relating to the antipodes or situated at opposite sides
           of the earth; "antipodean latitudes"; "antipodal regions
           of the earth"; "antipodal points on a sphere" [syn:
           {antipodal}, {antipodean}]
    n 1: the relation of opposition along a diameter [syn:
         {antipodal}, {antipodal opposition}, {diametrical
         opposition}]

from The Collaborative International Dictionary of English v.0.48

Antipodal \An*tip"o*dal\, a.
   1. Pertaining to the antipodes; situated on the opposite side
      of the globe.
      [1913 Webster]

   2. Diametrically opposite. "His antipodal shadow." --Lowell.
      [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

21 Moby Thesaurus words for "antipodal":
      antipodean, antithetic, antithetical, confronting, contradictory,
      contrapositive, contrary, converse, counter, diametric,
      diametrically opposite, eyeball-to-eyeball, facing, inverse,
      obverse, opposing, opposite, polar, polaric, polarized, reverse

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