He gave himself up to it, and it roared out of him like an unstoppable tide.

His fists clenched at his side, the frustration, the rage of the past twelve years surging up inside like a black, unstoppable tide.

Like an unstoppable tide they swept through the streets.

Across the world, rural poverty is causing an unstoppable tide of migration to the cities.

But as for claiming victory and heralding an unstoppable tide of democracy, it is far too soon.

Still their assailants came on, an unstoppable tide of alien hunger and hate.

When it tried to supress Galileo's astronomy, the church found itself battling an unstoppable historical tide.

The aliens, who had been pouring through in an apparently unstoppable tide, had suddenly stopped coming through the gate.

As 2003 draws to a close, he finds himself at an especially difficult juncture, the result of a seemingly unstoppable tide of bad news.

He seemed to know his future, seemed to have some time-earned understanding of how governments and people change like unstoppable tides.