The Collaborative International Dictionary of English v.0.48:
Transmutability \Trans*mu`ta*bil"i*ty\, n. [Cf. F. transmutabilit['e].] The quality of being transmutable. [1913 Webster]WordNet (r) 3.0 (2006):
transmutability n 1: the quality of being commutable [syn: commutability, transmutability]