Adjective
unsustainable (comparative more unsustainable, superlative most unsustainable)
Not sustainable.
To avoid large and unsustainable budget deficits, the nation will ultimately have to choose among higher taxes, modifications to entitlement programs such as Social Security and Medicare, less spending on everything else from education to defense, or some combination of the above. Ben Bernanke
We need what I have often called an ecological approach to the management of these resources and we do not have that now. We have the inertia of past habits, unsustainable habits. Maurice Strong
Without calling the overall national issue a bubble, it's pretty clear that it's an unsustainable underlying pattern. Alan Greenspan
Leaders of institutions everywhere have lost trust. The global economy is stalled and the world is deeply divided, too unequal, unstable and unsustainable. Don Tapscott
Yet, despite our many advances, our environment is still threatened by a range of problems, including global climate change, energy dependence on unsustainable fossil fuels, and loss of biodiversity. Dan Lipinski
If we are going to make the change from community to communitas, and not just end up with an unsustainable adrenaline-junkie culture, we must have a sophisticated process to form people into adventurer-disciples. Alan Hirsch