The word "chanceable" refers to something that is subject to change or variability. While there might not be a direct synonym for this exact term, there are certain words that can convey a similar meaning. One such word is "modifiable", indicating the possibility of alteration or adjustment. "Variable" can also be used to denote the potential for change. Additionally, "mutable" implies the capacity for transformation or adaptability. Similarly, "evolving" suggests something that is in a continuous state of change. In summary, while there might not be an exact synonym for "chanceable", these alternative words can effectively portray the notion of variability or susceptibility to modification.