adjective. Unable to be done; impracticable. 'It is not hopeless, it is not undoable, we have only to marshal the will to start paying attention. '

What means undoable?

1 : impossible to do : not doable a theoretical approach that proved to be undoable in practice. 2 : able to be reversed or undone : possible to undo Nearly everything you can do to an image is undoable.

What is the prefix for undoable?

The conversations are lively and demonstrate the students' knowledge of the af- fixes (“I have undoable. It has the prefix un- , so that means not, and the suffix - able, which means can. So, undoable means something that can't be done”).