adjective

sustainable

sustainable

We need to find sustainable energy sources.

We need to find sustainable energy sources.

This is not a sustainable solution to the problem.

This is not a sustainable solution to the problem.

sustainable ((noun)) We need to find sustainable energy sources.

environmentally/economically sustainable The plan must be economically sustainable.

Synonyms: viable, long-term, eco-friendly; Antonyms: unsustainable

From 'sustain' (to keep up) and the suffix '-able' (capable of). Literally 'able to be sustained'.

Break it down into 'sustain-able'. If something is sustainable, it is 'able' to be 'sustained' or kept going.

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