sus‧tain‧a‧ble AC /səˈsteɪnəbəl/ adjective
1. able to continue without causing damage to the environment:
The government should do more to promote sustainable agriculture.
the sustainable use of rainforest resources
Cycling is a totally sustainable form of transport.
environmentally sustainable development
2. able to continue for a long time:
The party is promising low inflation and sustainable economic growth.