This is one of the scariest phrases to find. Sometimes it can be serious, other times, it's not.

I'm not going to affirm that. I'll just say he's a serious student of the law.

On a scale of diseases, mumps is not what we would consider one of the more serious.

Under Prop. 34, serious candidates for governor in California need to have one of two things. Tens of millions of dollars of their own money or tens of thousands of their own supporters.

That was one I did not expect anything to happen.

That's the scariest part of all.