What is this definition: an abundant source or supply

Having an abundant source or supply of an item means that you have a lot of the item - basically means you won't run out of the supply soon.

Few other descriptors can be having more than enough, having plentiful, having an excess amount, extras, etc.

abundance of something is to have more than you need

crying when you don't get your way

Explanation:

Crying when you don't get your way. An adult should not cry over not getting something there way they would try to negotiate to get it there way or accept like a mature adult whould