/ səˈsteɪnəbl; NAmE / adjective
1.
involving the use of natural products and energy in a way that does not harm the environment :
sustainable forest management
an environmentally sustainable society
2.
that can continue or be continued for a long time :
sustainable economic growth
OPP unsustainable
► sus·tain·abil·ity / səˌsteɪnəˈbɪləti; NAmE / noun [ U ]