- n a seducer who ruins a woman
she awoke in the arms of her cruel undoer
- n a person who unfastens or unwraps or opens
children are talented undoers of their shoelaces
- n a person who destroys or ruins or lays waste to
jealousy was his undoer
- The next evil undoer of righteous Germany to be taken up was Bolshevism, by which, roared Siegfried Hitler, "the world of supernatural imagination is torn apart, a God is .
- He arranges for an abortion, although he is not the deb's undoer.