An intriguing new theory explains how weak faults might operate.

This is, to say the least, a controversial if intriguing theory.

A sampling of several urban anthropologists came up with no definitive answers, but a handful of intriguing theories.

Researchers familiar with the new work said it was an intriguing theory that was worth pursuing.

He had suggested several intriguing theories as to what was causing the phenomenon.

Mr. Stark sneaks in one of his most intriguing theories late in the book.

I wouldn't call him a conspiracy theorist, but he has held an intriguing theory for years.

The most intriguing theory holds that Mack holes may be gateways to other parts of this universe or to entirely separate universes.

"An intriguing theory of art," Kane commented after a slight pause.

It's an intriguing theory, but it's certainly not true.