Janus, ambiguity, ambitendency, ambivalence of impulse, antinomy, asymmetry, biformity, bifurcation, capriciousness, change of mind, changeableness, conflict, conjugation, decompensation, dichotomy, disproportion, disproportionateness, double-mindedness, doubleness, doublethink, doubling, dualism, duality, dubiety, dubiousness, duplexity, duplication, duplicity, emotional shock, equivocality, equivocation, external frustration, fence-sitting, fence-straddling, fickleness, frustration, halving, heresy, heterodoxy, heterogeneity, incoherence, incommensurability, incompatibility, incongruity, inconsistency, inconsonance, inconstancy, indecision, indecisiveness, infirmity of purpose, instability, irony, irreconcilability, irresolution, mental shock, mercuriality, mugwumpery, mugwumpism, nonconformability, nonconformity, oxymoron, pairing, paradox, polarity, psychological stress, second thoughts, self-contradiction, stress, tergiversation, trauma, traumatism, twinning, two-facedness, twoness, uncertainty, unconformability, unconformity, undecidedness, undeterminedness, unorthodoxy, unsettledness, unsettlement