I'm extremely sorry for the unprofessional conduct.

Translation language

Meaning

A formal apology for inappropriate behavior.

John: 'I'm sorry, Alice, my behavior was unacceptable.'<br>

Alice: 'I'm extremely sorry for the unprofessional conduct. It won't happen again.'

John: 'I'm extremely sorry for the unprofessional conduct. Let's discuss a better approach.'

Alice: 'I apologize for my unprofessional conduct, John.'<br>