No stretch of logic will support such an outlandish theory.

One outlandish theory is that the vessel's disappearance can be attributed to the Bermuda Triangle.

When I get to those exalted ranks, I'll make up my own outlandish theories.

I have an outlandish theory that our atomosphere is perhaps warmed by the sun?

The newspapers had outlandish theories for what had happened.

Once upon a time it was the province of philosophy to propose ambitious and outlandish theories in advance of any concrete evidence for them.

She engages Stephen with her outlandish theories on time and space.

He's named in at least three outlandish theories, despite unshakable alibis.

Sayre actually paused to consider that outlandish theory.

"Right now, I'm desperate enough to listen to even the most outlandish theory."