Mū'ta-ble, a.

adjective

a. [Lat. mutabilis, from mutare, to change; It. mutabile, Sp. mudable, Fr. muable.]

  1. Capable of alteration; subject to change; changeable in form, qualities, or nature. “Things of the most accidental and mutable nature.” South.
  2. Susceptible of change; inconstant; unsettled; unstable. “Most mutable in wishes.” Byron.

Syn.—Changeable; alterable; unstable; unsteady; unsettled; wavering; inconstant; variable; irresolute; fickle.