1. Conditional antagonism
[Nouns] disagreement [more]; discord, disaccord, dissidence, dissonance; jar, clash, shock; jarring, jostling; screw loose.
variance, difference, dissension, misunderstanding, cross purposes, odds, brouillerie; division, split, rupture, disruption, division in the camp, house divided against itself, disunion, breach; schism (dissent) [more]; feud, faction.
quarrel, dispute, tiff, tracasserie, squabble, altercation, barney, demel�, snarl, spat, towrow, words, high words; wrangling; jangle, brabble, cross questions and crooked answers, snip-snap; family jars.
broil, brawl, row, racket, hubbub, rixation; embroilment, embranglement, imbroglio, fracas, breach of the peace, piece of work, scrimmage, rumpus; breeze, squall; riot, disturbance (disorder) [more]; commotion (agitation) [more]; bear garden, Donnybrook Fair.
subject of dispute, ground of quarrel, battle ground, disputed point; bone of contention, bone to pick; apple of discord, casus belli; question at issue (subject of inquiry) [more]; vexed question, vexata quaestio, brand of discord.
[Verbs] be discordant; disagree, come amiss [more]; clash, jar, jostle, pull different ways, conflict, have no measures with, misunderstand one another; live like cat and dog; differ; dissent [more]; have a bone to pick, have a crow to pluck with.
split; break with, break squares with, part company with; declare war, try conclusions; join issue, put in issue; pick a quarrel, fasten a quarrel on; sow dissension, stir up dissension; embroil, entangle, disunite, widen the breach; set at odds, set together by the ears; set against, pit against.
get into hot water, fish in troubled waters, brawl; kick up a row, kick up a dust; turn the house out of window.
[Adjectives] discordant; disagreeing; out of tune, ajar, on bad terms, dissentient [more]; unreconciled, unpacified.
quarrelsome, unpacific; gladiatorial, controversial, polemic, disputatious; factious; litigious, litigant; pettifogging.
at odds, at loggerheads, at daggers drawn, at variance, at issue, at cross purposes, at sixes and sevens, at feud, at high words; up in arms, together by the ears, in hot water, embroiled.