Our projected foreign debt and lack of savings is unsustainable and dangerous.
But today, skyrocketing costs price way too many young people out of a higher education, or saddle them with unsustainable debt.
The Afghan government is almost totally funded by the subsidies of donor governments, a situation that clearly is unsustainable.
The consumers addicted to luxury spending refused to deal with their unsustainable credit card debt until it overwhelmed them.
The police state system that propped up dictators from Algiers to Islamabad for decades was unsustainable.
If this is unsustainable, there is nothing finally in his Metaphysics of Will to necessitate the pessimistic conclusion drawn.
This, no doubt, is unsustainable ultimately, if reason is ever to emerge from them.
The use, therefore, which was made of the resolutions on Mr. Duffy's trial was false and unsustainable in every point of view.
But this last plea was said by the American representative to be unsustainable.
But she was crying dreadfully; and he was proving to her some new and unsustainable theory of bacilli.
for a very long or indefinitely long time
He stayed out until the cows came home.