(n.) The quality or state of being inconstant; want of constancy; mutability; fickleness; variableness.

Punic faith ambitendency ambivalence arrhythmia bad faith barratry breach of faith breach of promise breach of trust brokenness capriciousness change of mind changeability changeableness choppiness coquettishness dappleness dereliction desultoriness deviability deviation difference differentiation disaffection disconnectedness discontinuity disloyalty disorder divarication divergence diversification double-mindedness dubiety dubiousness eccentricity erraticism erraticness faddishness faddism faithlessness falseness falsity fence-sitting fence-straddling fibrillation fickleness fitfulness fits and starts flightiness fluctuation freakishness frivolousness impulsiveness inconsistency indecision indecisiveness inequality infidelity infirmity of purpose instability intermittence irregularity irresolution jerkiness levity lightness mala fides mercuriality mercurialness moodiness motleyness mugwumpery mugwumpism mutability nonconformism nonconformity nonstandardization nonuniformity patchiness pluralism raggedness recreancy restlessness roughness second thoughts shiftiness skittishness spasticity sporadicity sporadicness spottiness stagger tergiversation trothlessness uncertainty unconformism unconformity undecidedness undependability undeterminedness unevenness unfaith unfaithfulness unfixedness unloyalty unmethodicalness unorthodoxy unpredictability unreliability unsettledness unsettlement unstableness unsteadfastness unsteadiness unsystematicness untrueness variability variation variegation variety variousness versatility volatility wantonness wavering waywardness whimsicality wobble