Discordia, Eris, Kilkenny cats, abhorrence, abomination, alienation, allergy, altercation, animosity, animus, antagonism, antipathy, argument, aversion, bad blood, bickering, bitterness, cat-and-dog life, clash, clashing, cold sweat, collision, combat, competition, conflict, contention, contentiousness, contest, contestation, contrariety, contrariness, controversy, creeping flesh, cross-purposes, cut and thrust, daggers, dead set, debate, detestation, disaccord, disaffection, disaffinity, discord, discordance, discordancy, disgust, disharmony, dislike, disputation, dispute, dissension, estrangement, fighting, fractiousness, friction, gall, hate, hatred, horror, hostility, ill will, incompatibility, incompatibleness, inharmoniousness, inharmony, inimicalness, jangle, jar, litigation, loathing, logomachy, malevolence, malice, malignancy, malignity, mischief, mortal horror, nausea, negativeness, noncooperation, obstinacy, open conflict, oppugnancy, paper war, perverseness, polemic, quarrel, quarreling, quarrelsomeness, rancor, recalcitrance, refractoriness, repugnance, repulsion, rivalry, rub, scrapping, shuddering, spite, spleen, squabbling, strained relations, strife, struggle, tension, uncooperativeness, uncordiality, unfriendliness, unharmoniousness, unpleasantness, vying, war, war of words, warfare, words, wrangling