The Collaborative International Dictionary of English v.0.48:

Transmigratory \Trans*mi"gra*to*ry\, a.
   Passing from one body or state to another.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

35 Moby Thesaurus words for "transmigratory":
   circumforaneous, discursive, divagatory, drifting, errant,
   flitting, floating, footloose, footloose and fancy-free, fugitive,
   gadding, gypsy-like, gypsyish, landloping, meandering, migrant,
   migrational, migratory, mobile, nomad, nomadic, rambling, ranging,
   roaming, roving, shifting, straggling, straying, strolling,
   traipsing, transient, transitory, vagabond, vagrant, wandering