adversative, adverse, adversive, antagonistic, anti, antipathetic, antipodal, antithetic, antonymous, at cross-purposes, balancing, clashing, compensating, conflicting, contradictory, contradistinct, contrapositive, contrarious, contrary, contrasted, converse, counter, counterbalancing, counterpoised, countervailing, dead against, discordant, discrepant, eyeball-to-eyeball, eyeball to eyeball, facing, hostile, inconsistent, inimical, inverse, obverse, opposed, opposing, opposite, oppositional, oppositive, oppugnant, perverse, polar, polaric, polarized, repugnant, reverse, squared off