Is Reasonable Faith an Oxymoron?

 Faith does seem to involve believing in spite of something. Atheists jump on this and say that what believers are talking about is believing in spite of having no good reason to believe it, and good reason to not believe it. 

However, we can, for example, trust that a spouse is going to be faithful even though the spouse is out of our sight. In fact, the Apostle Paul contrasts faith with sight, not reason. Unless seeing is the only way we can have a good reason to believe something, it does seem to me that we cannot say that reasonable faith is an oxymoron by definition.