Is there a generally accepted antonym for Well done! ?
I mean something like :
"That was lame"
Context: A feedback app in which a bad performance by a user has to be responded with a mild rebuke. So hard luck is not an option. I would like to say something like Bad job.
It doesn't have to be a single word, as Well done is neither. I am looking for a disapproving tone or something that expresses dissatisfaction. It should contrast Well done to the extent that it makes clear to the user that he screwed it up