vipakza a. Hostile, inimical, adverse, contrary. — kzaH 1 An enemy, adversary, opponent; guRAstasya vipakzepi guRino leBireMtaraM R. 17. 75 ; Śi. 11. 59. 2 A rival or fellow wife; R. 19. 20. 3 A disputant; Ki. 17. 43. 4 (In logic) A negative instance, an instance on the opposite side, ( i. e. that in which the sADya or major term is not found); niScitasADyABAvavAn vipakzaH T. S. ; Mu. 5. 10. 5 (In gram. ) An exception. Comp. — BAvaH, -vftti f. hostility.