WordNet (r) 3.0 (2006):

counterpose
    v 1: constitute a counterweight or counterbalance to [syn:
         counterweight, counterpoise, counterpose]

Moby Thesaurus II by Grady Ward, 1.0:

71 Moby Thesaurus words for "counterpose":
   analogize, antagonize, assimilate, balance, be antipathetic,
   be at cross-purposes, be inimical, be opposed to, beat against,
   bring into analogy, bring into comparison, clash, collide, compare,
   compare and contrast, compare with, conflict, conflict with,
   confront, confute, contradict, contrapose, contrast, contrast with,
   contravene, controvert, counter, counteract, counterattack,
   counterbalance, countercheck, counterpoise, countervail,
   counterwork, cross, draw a comparison, draw a parallel, go against,
   go counter to, interfere with, juxtapose in opposition, liken,
   liken to, lock horns, match, measure against, meet head-on,
   metaphorize, militate against, offset, oppose, oppugn, parallel,
   place against, play at cross-purposes, relate, resist,
   run a comparison, run against, run counter to, set in contrast,
   set in opposition, set off, set off against, set over against,
   similize, swim upstream, view together, weigh, weigh against,
   work against