antipode, antithesis, bifurcation, contrarian, contrary, contrast, diametric, diametrical, dichotomy, differentiate, discrepancy, disparate, disparity, disproportionate, distinct, divergent, eclectic, exception, extrinsic, heterogeneous, incongruence, incongruous, inconsistency, inconsistent, inequity, inextricable, inverse, irreconcilable, juxtapose, manifold, neutral, opposite, polarity, reciprocal, reverse, southpaw, vis-à-vis