undoers
nounUK /ʌnˈduːəz/
US /ʌnˈduːərz/
Undoers are people who take apart or cancel things that were done.
The undoers carefully took apart the knot in the rope.
OTHER MEANINGS
2. People who ruin or bring about the downfall of something.
They were seen as the undoers of the old agreement.
3. Tools or devices that loosen or open something.
The undoers on the machine helped open the sealed box.
4. People who reverse a previous action or decision.
The new committee acted as undoers of the earlier rules.