Discordia, Eris, altercation, antagonism, anteposition, antipathy, antithesis, apologetics, apologia, apology, argument, argumentation, argumentative, bellicose, belligerence, belligerent, bicker, bickering, blood feud, brawl, broil, bucking, captious, carping, casuistry, caviling, challenge, clash, clashing, collision, combative, conflict, confrontation, confrontment, contentious, contestation, contradiction, contraposition, contrariety, contrary, contrast, contravention, contraversion, controversial, controversy, counteraction, counterworking, crosscurrent, crossing, defense, denial, despitefulness, difference, disaccord, disaffinity, discord, discordance, discordancy, disharmony, disputation, disputatious, dispute, dissension, dissent, dissidence, disunity, donnybrook, donnybrook fair, embroilment, enmity, faultfinding, feud, fiery, fight, fliting, flyting, fracas, friction, froward, fuss, hassle, hasty, hate, hatred, head wind, hostility, hotheaded, hubbub, hurrah, imbroglio, impetuous, impugnation, impugnment, incompatibility, incompatibleness, inharmoniousness, inharmony, jangle, jar, litigation, litigious, logomachy, malevolence, malice, malignity, militant, mischief, negation, noncooperation, open conflict, open quarrel, opposing, opposition, opposure, oppugnation, paper war, passage of arms, peppery, perverse, polar opposition, polarity, polarization, polemic, polemical, polemics, posing against, pugnacious, quarrel, quarrelsome, quarrelsomeness, rebutment, rebuttal, refusal, rejection, repugnance, resistance, rhubarb, rub, rumpus, scrappy, set-to, sharp words, slanging match, snarl, spat, spite, spitefulness, squabble, standing against, strained relations, strife, tension, tiff, traversal, truculent, tussle, undercurrent, unharmoniousness, unpleasantness, variance, vendetta, verbal engagement, war of words, warlike, words, wrangle, wrangling