(n.) The state or quality of being discrepant; disagreement; variance; discordance; dissimilarity; contrariety.

antagonism antipathy antithesis argumentation balance clashing collision conflict confrontation contradiction contradistinction contraindication contraposition contrariety contrast controversy counterposition credit cross-purposes deficit departure deviation difference disaccord disaccordance disagreement disconformity discongruity discord discordance discordancy discreteness disharmony disparity dissemblance dissension dissent dissidence dissimilarity dissimilitude dissonance distinction distinctness disunion disunity divergence divergency diversity epact faction far cry gap heterogeneity hostility inaccordance incompatibility incongruity inconsistency inconsonance inequality inharmoniousness inharmony inimicalness irreconcilability jarring lacuna mixture negation net nonconformity odds oppositeness opposition opposure oppugnance oppugnancy otherness perversity polarity remainder repugnance separateness showdown surplus unconformity unharmoniousness unlikeness unorthodoxy variance variation variegation variety