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unsustainable JUST WRITTEN FOR YOU

/ʌnˈsʌstənəbəl/ · un.sus.tain.a.ble
adjective
  1. Not capable of being sustained or maintained. The company's unsustainable business model led to its bankruptcy.
  2. Not able to be supported or maintained over time. The effects of climate change are unsustainable and require immediate action.
Did you know? The concept of sustainability has become increasingly important in recent years, with many organizations and governments working to reduce their environmental impact and promote sustainable practices.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 16, 2026