undoer -- (a seducer who ruins a woman; "she awoke in the arms of her cruel undoer")
undoer, opener, unfastener, untier -- (a person who unfastens or unwraps or opens; "children are talented undoers of their shoelaces")
destroyer, ruiner, undoer, waster, uprooter -- (a person who destroys or ruins or lays waste to; "a destroyer of the environment"; "jealousy was his undoer"; "uprooters of gravestones")
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