permutable

from WordNet (r) 3.0 (2006)

permutable
    adj 1: capable of changing sequence [syn: {transposable},
           {permutable}]

from The Collaborative International Dictionary of English v.0.48

Permutable \Per*mut"a*ble\ (p[~e]r*m[=u]"t[.a]*b'l), a. [Cf. F.
   permutable.]
   Capable of being permuted; exchangeable. --
   {Per*mut"a*ble*ness}, n. -- {Per*mut"a*bly}, adv.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

51 Moby Thesaurus words for "permutable":
      able to adapt, adaptable, adjustable, alterable, alterative,
      changeable, checkered, commutable, commutative, convertible, equal,
      equalizing, equivalent, even, ever-changing, exchanged, flexible,
      fluid, give-and-take, impermanent, interchangeable, interchanged,
      kaleidoscopic, malleable, many-sided, metamorphic, mobile,
      modifiable, movable, mutable, mutual, nonuniform, plastic, protean,
      proteiform, reciprocal, reciprocating, reciprocative, resilient,
      retaliatory, returnable, rubbery, standard, supple, swapped,
      switched, traded, transient, transitory, transposed, variable