What does "undone" mean? Could you give me some examples?

Native speaker’s answer
Rebecca
Here, "undone" is a metaphorical meaning of ruined, doomed, or disintegrated. Generally speaking, "undone" means not tied, fastened, or finished. Here are some examples: Ex: The knot came undone because of the wind. Ex: A few of your shirt buttons are undone. Ex: The business is undone. I don't think we can fix it. Ex: Our friend group is coming undone. => in the process of ending Ex: I had to leave some work undone. But I'll finish it tomorrow.