unsustainable C1 Topic:Describing Qualities US /ˌənsəˈsteɪnəbəl/ See IPA manual Freq #45318 Meanings 1 adj Unable to continue at the current level without causing harm or running out of resources. This level of government spending is simply unsustainable. Etymology AI details From un- + sustainable. Topics Describing Qualities Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # unsustainable **Type:** Word **Level:** C1 **Part of speech:** adj **IPA (US):** /ˌənsəˈsteɪnəbəl/ **Frequency rank:** 45318 ## Meanings 1. Unable to continue at the current level without causing harm or running out of resources. ## Examples - This level of government spending is simply unsustainable. ## Etymology From un- + sustainable. ## AI Etymology Unsustainable is from un- + sustainable. In present-day use, it means unable to continue at the current level without causing harm or running out of resources. ## Topics - Describing Qualities - Word Formation & Derivatives markdown