[adjective]If something is sustainable, it is able to be continued in its present form.I don't believe that they have a sustainable argument. The myth about a woman's place being in the home is no longer sustainable.Sustainable is also used to refer to a way of using natural products so that no damage is caused to the environment.A large international meeting was held with the aim of promoting sustainable development in all countries.
SUSTAINABLE
Meaning of SUSTAINABLE in English
Cambridge English vocab. Кембриджский английский словарь. 2012