They would criticize me, or worse yet, pay me no attention.

他们会批评我，甚或更糟，会不理我。

《柯林斯英汉双解大词典》

It is very easy to use the wrong one, or worse yet, to not even realize that they are different.

非常容易的错误地使用它们当中的一个，或者更糟糕的是，根本意识不到它们的不同。

youdao

The problem is that you've outgrown your old one or worse yet, it's just gotten too expensive to maintain.

问题是你的旧车已经不合适或者已经坏掉了，要维护的话需要高昂的费用。

youdao

Inappropriately applied focus can become its own distraction, or worse yet, a delusion.

FORBES: Great Leaders Have It - Do You?

In fact there is a very real fear that our shortcomings will be called out and our messages will be deemed irrelevant or worse yet labeled as fraudulent.

FORBES: Time for Marketers to Get Real about the Brand

Couple that with processes that seek certainty at the expense of creativity and calculated risk taking and you have the perfect mix for incremental results or worse yet, market failure.

FORBES: Test Your Innovation IQ