changefulness

from WordNet (r) 3.0 (2006)

changefulness
    n 1: the quality of being changeable and variable [syn:
         {inconstancy}, {changefulness}] [ant: {constancy},
         {stability}]

from The Collaborative International Dictionary of English v.0.48

Changeful \Change"ful\, a.
   Full of change; mutable; inconstant; fickle; uncertain.
   --Pope.
   [1913 Webster]

         His course had been changeful.           --Motley.
   -- {Change"ful*ly}, adv. -- {Change"ful*ness}, n.
   [1913 Webster]