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.
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.
The NYT story offers a more measured tone, with now-familiar caveats about unsustainable pace.
Otherwise, the United States would have to police the world alone, which is unsustainable politically (thanks in part to vociferous opposition from many of these same critics), not to mention militarily.
On the contrary, they are the normal result when rational investors contemplate the implications of unsustainable policies.