What is another word for un-sustaining?
Pronunciation: [ˈʌnsəstˈe͡ɪnɪŋ] (IPA) 
Un-sustaining can be broadly defined as something that is not capable of maintaining itself or is unviable in the long run. There are several synonyms for the word unsustaining, including unsustainable, nonviable, failing, unworkable, unfeasible, unprofitable, and unproductive. Unsustainable refers to something that cannot be continued in the long run due to environmental, economic, or social factors. Nonviable suggests that the thing cannot survive or prosper because of its inherent flaws or weaknesses. Failing implies that something is not succeeding in its objectives, leading to its eventual collapse. Unworkable and unfeasible describe ideas, policies, or plans that are impractical, unachievable, or unrealistic. Finally, unprofitable and unproductive refer to something that is not generating enough income or output to be sustainable.
