make (a) nonsense of something
idiomPart ofnonsense
make (a) nonsense of something — idiom
1. To greatly reduce the value or effectiveness of something, or to make it seem ri
1.idiom
Definition
To greatly reduce the value or effectiveness of something, or to make it seem ridiculous.
Example
The new law makes a nonsense of all our previous efforts.
Did the scandal make nonsense of the company's promises?