Synonyms and related words :
abhorrent, acrid, adversary, adversative, adverse, adversive, alien, antagonistic, anti, antipodal, antithetic, antithetical, antonymous, at cross-purposes, at daggers drawn, at loggerheads, at odds, at variance, at war, balancing, belligerent, bitter, breakaway, caustic, clashing, colliding, compensating, competitive, con, conflicting, confronting, contradicting, contradictory, contradistinct, contrapositive, contrarious, contrary, contrasted, converse, counter, counteractant, counteracting, counteractive, counterbalancing, counterpoised, countervailing, counterworking, cranky, cross, crotchety, dead against, despiteful, differing, disaccordant, disagreeable, disagreeing, discordant, discrepant, disgusting, disharmonious, disproportionate, dissentient, dissident, dissonant, distasteful, divergent, enemy, eyeball to eyeball, fractious, full of hate, grating, hateful, hostile, immiscible, inaccordant, incompatible, inconsistent, inharmonious, inimical, inverse, jangling, jarring, loathsome, malevolent, malicious, malignant, negative, nonconformist, noncooperative, obnoxious, obstinate, obverse, opponent, opposed, opposing, opposite, oppositional, oppositive, oppugnant, out of accord, out of whack, overthwart, perverse, quarrelsome, rancorous, reactionary, recalcitrant, refractory, renitent, repellent, repugnant, repulsive, resistant, reverse, revolutionary, rival, set against, sore, spiteful, squared off, uncongenial, uncooperative, unfavorable, unfriendly, ungenial, unharmonious, unpropitious, unsympathetic, variant, venomous, virulent, vitriolic,