most opposite

adverse antagonistic antithetical contradictory differing paradoxical reversed

antipodal contrary counter facing hostile independent inverse obverse reverse separate

antipodean contrapositive contrasted corresponding crosswise diametric diametrically opposed different dissimilar diverse flip-side fronting inconsistent inimical irreconcilable opposed ornery polar repugnant retrograde unalike unconnected unrelated unsimilar violative vis-à-vis

agreeing similar

compatible like