Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class II. Words Relating to Space
Section II. Dimensions
3. Centrical Dimensions
2. Special

237. Contraposition.

   NOUN:CONTRAPOSITION, opposition; polarity; inversion [See Inversion]; opposite side; reverse, inverse; counterpart; antithesis.
  ANTIPODES, opposite poles, North and South.
   VERB:BE OPPOSITE &c. adj.; subtend.
   ADJECTIVE:OPPOSITE; reverse, inverse; converse; antipodal, diametrical, antithetic, counter, subcontrary; fronting, facing, diametrically opposite.
  NORTHERN, north, northerly, northward, hyperborean, septentrional, boreal, polar, arctic.
  SOUTHERN, south, southerly, meridional, southward, Austral, antarctic.
   ADVERB:OVER, over the way, over against; against; face to face, vis-à-vis [F.]; as poles asunder.