Adjective : the mutable ways of fortune.    From Dictionary.com. 

Terpsichore pauper Nevada Oderberg mutableness Schaeffer.    From Wordnik.com.  [The Volokh Conspiracy » THE CELL PHONE, MAYBE NOT-SO-MENACE:] Reference

This is perhaps the trickiest part of migrating enterprise teams to a services based model, their expectations of the mutableness of the services they are accessing and their inability to anticipate what working in that world will be like.    From Wordnik.com.  [MSDN Blogs] Reference