mercurialize

Example:They decided to stabilize the company's financial situation instead of allowing it to continue mercurializing.

Definition:To make something steady or firm, the opposite of making it unpredictable.

Example:Unlike his mercurialized life, he preferred to have a more deciduous approach to life, where things changed predictably and at a slower pace.

Definition:Tending to fall off at maturity, as plant leaves or feathers, or having parts that are shed in annual cycles, often used metaphorically to describe predictability in change.