When it comes to warning someone, sometimes using the same term like "final warning" every time can seem repetitive. But fear not, there are several synonyms that can convey the message just as effectively. Instead of a final warning, you can give someone a last chance, a stern caution, a serious reminder, a strong admonition, or a decisive notice. These words are just as impactful as "final warning" and can be used interchangeably. Just be sure to use them at the appropriate time and in the right context so that the listener understands the gravity of the situation.