Noun disagreement
Synonyms: affray, altercation, argument, battle royal, beef, bickering, brannigan, brawl, breach, broil, catfight, combat, commotion, complaint, contention, controversy, difference, difference of opinion, difficulty, disapproval, discord, disputation, dispute, dissension, dissidence, disturbance, dust, falling-out, feud, fight, fisticuffs, fracas, fray, fuss, hassle, misunderstanding, objection, rhubarb, row, ruckus, run-in, scrap, set-to, spat, squabble, strife, struggle, tiff, tumult, vendetta, wrangle
Antonyms: agreement, peace
Verb disagree
Synonyms: altercate, argue, battle, be at loggerheads, bicker, brawl, break with, bump, carp, caterwaul, cavil, charge, clash, collide, complain, contend, contest, cross swords, differ, disapprove, dispute, dissent, divide, embroil, fall out, feud, fight, find fault, get tough with, hassle, have it out, have words, lock horns, mix it up, object to, row, scrap, set to, spar, spat, squabble, strive, struggle, take exception, take on, tangle, vary, war, wrangle
Antonyms: agree, make peace