zgubą Englisch:

Alcohol and drugs were his undoing.

greed is the undoing of many people

Although some of my sources maintained that laws and politics protect the President to a degree that his critics underestimate, others argued that he has already set in motion a process of his undoing.

It was his undoing.

Yet will the most basic instinct of all still prove to be our undoing? Alcohol and drugs were his undoing

Greed has been the undoing of many a businessman. Undoing the damage done by the storm will take many days.

an intractable drug habit proved to be her sad undoing