Words similar to unsustainable

Example sentences for: unsustainable

How can you use “unsustainable” in a sentence? Here are some example sentences to help you improve your vocabulary:

By the late 1980s, diminishing oil revenues, the economic drain from many unprofitable development projects, and population growth made these entitlement programs unsustainable.
"Had Monty won, Britain would have imposed an indefensible, and unsustainable, version of apartheid," the paper said.
46 The program is fiscally unsustainable in its current form, and growing Medicare spending is expected to drive federal government dissaving over the long run.
That is, there is some initial bone-building response by the body to large calcium doses, but it may be a temporary and unsustainable change.
What's more, outrage over consensual sex is unsustainable.