sustainable

sustainable

CEFR: C1-C2 /sus-tain-able/ [s.ah0.s.t.ey1.n.ah0.b.ah0.l]

If something is sustainable, it means it is able to last or continue for a long time

Example Sentences:
The creation of an efficient and sustainable transport system is critical to the long-term future of London.
As technological development continues to intensify business competition, the quality of customer service is likely to become the only sustainable source of competitive advantage.

We also use sustainable to describe a natural resource that is able to be consumed without being completely used up. For example:

Example Sentences:
Solar energy is a sustainable form of energy.
Wind energy is sustainable, but manufacture and implementation of wind farms can be costly.
Geothermal energy is a sustainable energy source and it is nearly emission-free.

We also use sustainable to describe a system or a method that does not completely use up or destroy natural resources and is beneficial to the environment. For example:

Example Sentences:
Sustainable agriculture benefits the environment by maintaining soil quality, reducing soil degradation and erosion, and saving water. In addition to these benefits, sustainable agriculture also increases the biodiversity of the area by providing a variety of organisms with healthy and natural environments to live in.