undoer

nouns

a seducer who ruins a woman
"she awoke in the arms of her cruel undoer"
undoer
is derived from
undo
is a type of (narrower)
a man who takes advantage of women
ladies' man, lady killer, seducer
a person who unfastens or unwraps or opens
"children are talented undoers of their shoelaces"
opener, undoer, unfastener, untier
is derived from
undo
is derived from
undo
a person who destroys or ruins or lays waste to
"a destroyer of the environment"; "jealousy was his undoer"; "uprooters of gravestones"
destroyer, ruiner, undoer, uprooter, waster
is derived from
undo