From Longman Business Dictionaryunsustainable growthunsusˌtainable ˈgrowthECONOMICS1growth that it is not possible to SUSTAIN (=make continue) without causing economic problemsEven the health-care industry, which created 425,000 jobs in the past year, will eventually slow its unsustainable growth as efforts to cut costs take effect.2economic growth that it is not possible to sustain without causing environmental problemsEver since Malthus forecast a population explosion among the poor, there have been prophecies of unsustainable growth. → growth