undrainable
Undrainable is an adjective used to describe something that cannot be emptied or from which liquid cannot be removed. This can apply to a variety of contexts. In a literal sense, a container might be considered undrainable if its design prevents complete emptying. For example, a container with a complex internal shape or a permanently sealed bottom might be described as undrainable.
The term can also be used metaphorically. A situation or problem might be described as undrainable if