Variability

n.	1.	The quality or state of being variable; variableness.
	2.	(Biol.) The power possessed by living organisms, both animal and vegetable, of adapting themselves to modifications or changes in their environment, thus possibly giving rise to ultimate variation of structure or function.

Noun	1.	variability - the quality of being subject to variation Synonyms: variableness, variance Antonyms: invariableness, invariance, invariability - the quality of being resistant to variation
	2.	variability - a quality of variability and lack of uniformity Synonyms: unevenness Antonyms: evenness, invariability - a quality of uniformity and lack of variation

arrhythmia, brokenness, capriciousness, changeability, changeableness, choppiness, dappleness, desultoriness, deviability, deviation, difference, differentiation, disconnectedness, discontinuity, disorder, divarication, divergence, diversification, eccentricity, erraticism, erraticness, fibrillation, fickleness, fitfulness, fits and starts, flightiness, fluctuation, freakishness, impulsiveness, inconsistency, inconstancy, inequality, instability, intermittence, irregularity, jerkiness, mercuriality, moodiness, motleyness, mutability, nonconformism, nonconformity, nonstandardization, nonuniformity, patchiness, pluralism, raggedness, restlessness, roughness, shiftiness, spasticity, sporadicity, sporadicness, spottiness, stagger, uncertainty, unconformism, unconformity, undependability, unevenness, unfixedness, unmethodicalness, unorthodoxy, unpredictability, unreliability, unsettledness, unstableness, unsteadfastness, unsteadiness, unsystematicness, variation, variegation, variety, variousness, versatility, wantonness, wavering, waywardness, whimsicality, wobble