IPA: /ʌnˈduːəbl/
KK: /ʌnˈduːəbl/
Something that can be reversed or canceled; it is possible to go back to a previous state or condition.
The changes made to the document are undoable, so you can revert to the original version if needed.
Undoable → It is formed from "un-" (meaning not) and "do" (from Old English "don", meaning to perform or act) and "-able" (meaning capable of). The word "undoable" means not capable of being performed or acted upon, indicating something that cannot be undone.
Think of 'not' ('un-') being able to 'perform' ('do') an action, which helps you remember that 'undoable' refers to something that cannot be undone.