sustainable
C1Pronunciation
UK
- /səstˈeɪnəbəl/
US
- /səˈsteɪnəbəl/
Description
- able to continue over time
- able to last
- practical for the future
- not harmful to the environment
Imagine a forest. A sustainable forest is not simply cut down for wood and left empty. It is managed with care, with new trees planted so the forest can keep growing and supporting life for many years. That is the basic idea behind "sustainable." It means using something in a way that can continue into the future, without causing serious harm or running out.
The word is often used for the environment, but not only for that. A sustainable business, for example, should be able to keep going over time, and not depend on harmful or wasteful habits. You might hear about sustainable agriculture, which means farming in a way that protects the land, or a sustainable lifestyle, where daily choices are made with the future in mind. The idea is balance: doing something in a way that can last.
"Sustainable" describes something that can be maintained at a certain rate or level. Originally, the term was closely tied to forestry—a sustainably harvested forest could provide resources continuously without being depleted. Today, however, "sustainable" has expanded far beyond timber. It has become a cornerstone concept in environmental science, economics, and social responsibility.
At its heart, sustainability is about balance. The most widely accepted definition comes from the Brundtland Report (1987): meeting the needs of the present without compromising the ability of future generations to meet their own needs. This means considering not just the environmental impact, but also economic viability and social equity.
You'll hear the word used in many contexts: sustainable energy (like solar or wind power), sustainable development (growth that doesn't exhaust natural resources), and sustainable fashion (clothing made with ethical and eco-friendly practices). A sustainable solution to a problem is one that will work long-term, rather than just providing a quick, temporary fix.
Think of it like this: if you spend all your money today, you won't have any for tomorrow. That is unsustainable! Similarly, if we consume resources without considering the consequences, future generations will suffer. Sustainability asks us to be mindful stewards of our resources, ensuring there is enough for everyone, both now and in the future. It's a call to action, urging us to make choices that support the long-term well-being of both people and the planet.
Examples
- 1
Public transport
The city is investing in sustainable public transport and bike lanes.
- 2
Farming methods
We want the farm to use more sustainable methods.
- 3
Home energy
Solar power has become a more sustainable option for many homes.
- 4
Charity funding
The charity needs a sustainable source of funding, not just one big donation.
- 5
Workload
Working twelve hours a day is not sustainable in the long run.
- 6
Business growth
The company is growing, but the team wants that growth to be sustainable.
- 7
Peace agreement
Any peace agreement has to be politically sustainable as well as popular.
Forms and spellings
1 form open this card.
Main spelling
- sustainableadjective