nonpermanent

39 Moby Thesaurus words for "nonpermanent":
      brittle, capricious, changeable, corruptible, deciduous, dying,
      ephemeral, evanescent, fading, fickle, fleeting, flitting,
      fly-by-night, flying, fragile, frail, fugacious, fugitive,
      impermanent, impetuous, impulsive, inconstant, insubstantial,
      momentary, mortal, mutable, nondurable, passing, perishable,
      short-lived, temporal, temporary, transient, transitive,
      transitory, undurable, unenduring, unstable, volatile