"undoers" in the noun sense
1. undoer
a seducer who ruins a woman
"she awoke in the arms of her cruel undoer"
2. undoer, opener, unfastener, untier
a person who unfastens or unwraps or opens
"children are talented undoers of their shoelaces"
3. 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"
Source: WordNet® (An amazing lexical database of English)
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