The quality of being changeable; having a marked tendency to change:
— The changeableness of the weather.

synonym: changeability.

Roget 111: transience, transientness etc. adj.^†; evanescence, impermanence, fugacity [Chem], caducity^†, mortality, span; nine days' wonder, bubble, Mayfly; spurt; flash in the pan; temporary arrangement, interregnum.    velocity etc. 274; suddenness etc. 113; changeableness etc. 149.    transient, transient boarder, transient guest [U.S.].    ... show more

Roget 140: change, alteration, mutation, permutation, variation, modification, modulation, inflexion, mood, qualification, innovation, metastasis, deviation, turn, evolution, revolution; diversion; break.    transformation, transfiguration; metamorphosis; transmutation; deoxidization [Chem]; transubstantiation; [Genetics], mutagenesis transanimation^†, transmigration, metempsychosis^†; avatar; alterative.    conversion etc. (gradual change) 144; revolution etc. (sudden or radical change) 146, inversion etc. (reversal) 218; displacement etc. 185; transference etc. 270.    changeableness etc. 149; tergiversation etc. (change of mind) 607.    ... show more

Roget 149: changeableness etc. adj.; mutability, inconstancy; versatility, mobility; instability, unstable equilibrium; vacillation etc. (irresolution) 605; fluctuation, vicissitude; alternation etc. (oscillation) 314.    restlessness etc. adj.. fidgets, disquiet; disquietude, inquietude; unrest; agitation etc. 315.    moon, Proteus, chameleon, quicksilver, shifting sands, weathercock, harlequin, Cynthia of the minute, April showers^†; wheel of Fortune; transientness etc. 111^†.    ... show more

Roget 605: irresolution, infirmity of purpose, indecision; indetermination, undetermination^†; unsettlement; uncertainty etc. 475; demur, suspense; hesitating etc. v., hesitation, hesitancy; vacillation; changeableness etc. 149; fluctuation; alternation etc. (oscillation) 314; caprice etc. 608.    fickleness, levity, legerete [Fr.]; pliancy etc. (softness) 324; weakness; timidity etc. 860; cowardice etc. 862; half measures.    waverer, ass between two bundles of hay; shuttlecock, butterfly; wimp; doughface [U.S.].    ... show more

Dutch: veranderlijkheid
Polish: zmienność, niejednakowość