I couldn't find your definition in any of the dictionaries.
In the Merriam-Webster Dictionary, the definition of predestination is, "the belief that everything that will happen has already been decided by God or fate and cannot be changed". If you'll notice the words "decided by God"...that's the part of the definition you're not acknowledging. God didn't make any of man's decisions. God knew about them but he didn't make man's decisions for him. Just because that's a difficult concept for our finite minds to grasp doesn't mean we can go and change it to fit what is easier for our minds to grasp.