I had to undo the last three steps because I made a mistake.
Can you undo the knot on this rope for me?
She used the command Ctrl+Z to undo her last action on the computer.
It took hours to undo the damage caused by the leaked information.
If you undo the first button, the jacket will fit more comfortably.
He realized too late that he couldn’t undo the consequences of his words.
The therapist helped her undo years of negative thinking patterns.
I need to undo these screws to disassemble the shelf.
She read the email again, wishing she could undo her hasty reply.
The tailor had to undo the stitches to alter the size of the dress.