All of conventional theory says it couldn't happen.

According to conventional economic theory, the $480 million loss should be fully reflected in the reduced market value of local property.

The finding was such a challenge to conventional theories that most scientists assumed they would quickly discredit the theory.

We have so far discussed a number of themes in conventional political theory.

Conner went against conventional theory when he formed a three-man design team to create a new 12-Meter.

But it's an interesting alternative to the conventional theory that you will often hear from professionals, managers and commentators.

Some said their findings were surprising or at least tweaked conventional theories.

Also, he was considered a critic of conventional economic theory.

To their surprise they immediately saw fusion effects, at a rate that was many times what any of them could explain via conventional theory.

He had never really bought the conventional theories on the Seid man murder-kidnapping.