sustainable C1 Topic:Environment & Ecology US /səˈsteɪnəbəl/ See IPA manual Freq #19738 Meanings 1 adj Able to continue for a long time without harming the environment or using up resources. The city is investing in sustainable energy like solar and wind. 2 adj Able to be kept going or maintained over time. The company's rapid growth may not be sustainable. Thesaurus Synonyms 1 adj · able to continue for a long... renewable Word family Derived forms sustainability Etymology AI details From sustain + -able. Topics Environment & Ecology Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # sustainable **Type:** Word **Level:** C1 **Part of speech:** adj **IPA (US):** /səˈsteɪnəbəl/ **Frequency rank:** 19738 ## Meanings 1. Able to continue for a long time without harming the environment or using up resources. 2. Able to be kept going or maintained over time. ## Examples - The city is investing in sustainable energy like solar and wind. - The company's rapid growth may not be sustainable. ## Derived Forms - sustainability ## Etymology From sustain + -able. ## AI Etymology Sustainable is from sustain + -able. In present-day use, it can mean able to continue for a long time without harming the environment or using up resources, or able to be kept going or maintained over time. Derived formations include sustainability. ## Topics - Environment & Ecology - Word Formation & Derivatives markdown