Noun has 3 senses

• undoer(n = noun.person) - a seducer who ruins a woman; "she awoke in the arms of her cruel undoer"

Derived form verb undo₃

• undoer(n = noun.person) opener, unfastener, untier - a person who unfastens or unwraps or opens; "children are talented undoers of their shoelaces"

Derived form verb undo₄, verb undo₅

• undoer(n = noun.person) destroyer, ruiner, uprooter, waster - a person who destroys or ruins or lays waste to; "a destroyer of the environment"; "jealousy was his undoer"; "uprooters of gravestones"


Derived form verb undo₃