I chased down a story about the supernatural and found a completely mundane explanation.

"It has some rational and mundane explanation, if we only knew."

He knew there must be a more mundane explanation.

There could be an even more sinister, yet completely mundane explanation.

They felt there had to be a mundane explanation for anything that happened.

To the Editor: Sometimes a finding of a social science study has a mundane explanation.

There are more mundane explanations, as we have suggested earlier.

I'm afraid he'll see through it somehow, have a mundane explanation for the things that make us special.

Other, more mundane explanations for the origin of the town's name also exist.

There simply wasn't a mundane explanation to account for it.