In world markets, the Japanese were regarded as unstoppable.
In the late 1990s, the big servers seemed unstoppable and rallies of more than three shots were a rarity.
"Half of Cuba lives off the black market," he said with a gruff smile. "And the other half depends on it. To me, it is unstoppable."
Thanks to a strong economy, a hapless opposition and a wave of sympathy after the sudden death last year of Nestor Kirchner, her husband and predecessor, her candidacy seems unstoppable.
The large-scale events are unstoppable.
In 480 BC, Athens lay in ruins conquered by the seemingly unstoppable Persian Empire.
Thus, as I argued in a prior column, it may well be that this is, in effect, an unstoppable technology.
They rose to join the unstoppable reform movement to overthrow the totalitarian regime. A new government was soon elected, giving Chinese culture in the archipelago a ray of hope.
What happens when an unstoppable force meets an unmovable object?
That energy streamer is just one of a multitude with unstoppable momentum toward world transformation.
As has been written above, the major, cyclic large-scale events that are set to occur are unstoppable by us or any other race, no matter how advanced their technology.
The process is slow, but frequently unstoppable, Hall says.
A victory for him would make Mr Tusk's efforts to consolidate the centre-right of the Polish political spectrum start to look unstoppable.
To me, it is unstoppable.
Imagine you're on an ocean liner when a wall of water ten stories tall RACES toward you like an unstoppable freight train.
Yet just when the firm seemed unstoppable, its world began to change.
Today, it is taken for granted that China is unstoppable.
Mr Tusk's efforts to consolidate the centre-right of the Polish political spectrum are starting to look unstoppable.
Silent, dignified, unstoppable tears.
The whole idea of the German Blitzkrieg tactic was to concentrate massive armored forces, and massive close air support, to create an unstoppable rapidly moving "armor fist" that could smash through anything and cause havoc and chaos in the enemy's side, regardless of the enemy's total force.