Disagreement

Noun

 * 1) An argument or debate.
 * They had a bit of a disagreement about what color to paint the bedroom, but they have reached a compromise.
 * 1) A condition of not agreeing or concurring.

Thesaurus
abnegation, agreement to disagree, alienation, altercation, antagonism, antipathy, antithesis, apostasy, argument, averseness, aversion, backwardness, ban, blackball, blackballing, clash, clashing, collision, complaint, conflict, confrontation, contention, contradiction, contradistinction, contraindication, contraposition, contrariety, contrast, controversy, counter-culture, counterposition, cross-purposes, cursoriness, debate, declension, declination, declinature, declining, denial, departure, deprivation, deviation, difference, difference of opinion, difficulty, dim view, disaccord, disaccordance, disallowance, disappointment, disapprobation, disapproval, disclaimer, disclamation, disconformity, discongruity, discontent, discontentedness, discontentment, discord, discordance, discordancy, discrepancy, discreteness, disenchantment, disesteem, disfavor, disgruntlement, disillusion, disillusionment, disinclination, disobedience, disparity, displeasure, dispute, disrelish, disrespect, dissatisfaction, dissension, dissent, dissentience, dissidence, dissimilarity, distaste, distinction, distinctness, divergence, divergency, diversity, dividedness, division, dropping out, exclusion, far cry, foot-dragging, fractiousness, grudging consent, grudgingness, heterogeneity, holding back, hostility, inaccordance, incompatibility, incongruity, inconsistency, inconsonance, indignation, indisposedness, indisposition, indocility, inequality, inharmoniousness, inharmony, inimicalness, intractableness, irreconcilability, lack of enthusiasm, lack of zeal, low estimation, low opinion, minority opinion, misunderstanding, mixture, mutinousness, nay, negation, negative, negative answer, nix, no, nolition, nonacceptance, nonagreement, nonassent, noncompliance, nonconcurrence, nonconformance, nonconformism, nonconformity, nonconsent, nonobservance, objection, obstinacy, odds, oppositeness, opposition, opposure, oppugnance, oppugnancy, originality, ostracism, otherness, perfunctoriness, perversity, polarity, polarization, protest, quarrel, recalcitrance, recalcitrancy, recantation, recusance, recusancy, refractoriness, refusal, rejection, reluctance, renitence, renitency, repudiation, repugnance, resistance, retention, rhubarb, secession, separateness, showdown, slowness, strife, stubbornness, sulk, sulkiness, sulks, sullenness, thumbs-down, turndown, unconformity, underground, unenthusiasm, unhappiness, unlikeness, unorthodoxy, unwillingness, variance, variation, variegation, variety, withdrawal, withholding