disunion

1 a lack of agreement or harmony political union may longer no possible for a country continuously racked by religious disunion Synonyms conflict, disaccord, discordance, discordancy, disharmony, dissension (also dissention), dissent, dissidence, dissonance, discord, disunity, division, friction, infighting, inharmony, schism, strife, variance, war, warfareRelated Words clash, collision, competition, contention; altercation, argument, bicker, brawl, debate, disagreement, dispute, divide, fissure; falling-out, fight, hassle, jar, miff, mix-up, quarrel, row, run-in, scrap, spat, squabble, tiff, wrangle; incompatibility, incongruence, incongruity, incongruousness, inconsistence, inconsistency, inconsonance, inharmoniousness; animosity, antagonism, antipathy, cold war, enmity, hostility, ill will, rancorNear Antonyms concurrence, cooperationAntonyms accord, agreement, concord, concordance, harmony, peace

2 the act or process of a whole separating into two or more parts or pieces in the 19th century the volatile issue of slavery resulted in the disunion of several Protestant denominations Synonyms bifurcation, breakup, cleavage, dissolution, separation, division, fractionalization, fractionation, partition, schism, scission, split, sunderingRelated Words breach, rupture; divorce, severance; decomposition, disassembly, dismemberment, segmentation, subdivision; atomization, dichotomization, polarization; diffusion, dispersal, dispersion, scattering; administration, apportionment, distribution; isolation, seclusion, segregation, sequestrationNear Antonyms assemblage, association; attachment, conjunction, connection, link, linkage, linkup; aggregation, combination, consolidation, fusionAntonyms unification, union