no good
idiomPart ofgood
no good — idiom
1. Completely useless, ineffective, or of unacceptable quality — a fixed expression
1.idiom
Definition
Completely useless, ineffective, or of unacceptable quality — a fixed expression used when something fails to serve its purpose.
Example
Christopher tried three different keys, but none of them were any good.
That old laptop is no good for editing videos anymore.