badly的比较级和最高级分别是:

worse；worst

例如:

1、The small department was already stretched to the limit, but worse was to follow.

那个小部门的工作量已经到极限了，但更糟的情况还在后头。

2、He was without doubt the very worst kind of reporter.

毋庸置疑，他属于那种最糟糕的记者。