showdown

from WordNet (r) 3.0 (2006)

showdown
    n 1: a hostile disagreement face-to-face [syn: {confrontation},
         {encounter}, {showdown}, {face-off}]

from Moby Thesaurus II by Grady Ward, 1.0

30 Moby Thesaurus words for "showdown":
      antagonism, antipathy, antithesis, clashing, climax, collision,
      conflict, confrontation, contradiction, contradistinction,
      contraindication, contraposition, contrariety, contrast,
      counterposition, cross-purposes, disagreement, discrepancy,
      hostility, inconsistency, inimicalness, moment of truth,
      oppositeness, opposition, opposure, oppugnance, oppugnancy,
      perversity, polarity, repugnance