Undoing in a Sentence 

Definition of Undoing  

downfall; defeat

Examples of Undoing in a sentence

It seems that complaining about her boss led to Megan’s undoing since she was fired a day after she made those negative comments.  
Although the failure of his marriage was his own undoing, Marlin had a hard time believing he was actually getting a divorce.  
A tip by an anonymous caller led to the murderer’s undoing and his eventual arrest.  

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