sustainable

adjective

sus·​tain·​able sə-ˈstā-nə-bəl 

1

: capable of being sustained

sustainable growth

a sustainable business model

And the ratings spike did not prove sustainable for the rest of the evening.

—Brian Steinberg

2

a

: of, relating to, or being a method of harvesting or using a resource so that the resource is not depleted or permanently damaged

sustainable techniques

sustainable agriculture

The study reflects a broadening search for more climate-friendly sustainable protein sources.

—Ashley Miznazi

b

: of or relating to a lifestyle involving the use of sustainable methods

a sustainable society

a sustainable future

… the most sustainable garment is one that already exists.

—Angela Velasquez

sustainability

sə-ˌstā-nə-ˈbi-lə-tē 

noun

… several boards throughout the state that focus on green building and sustainability.

—Melissa Followell

sustainably

sə-ˈstā-nə-blē 

adverb

Synonyms of sustainable

• justifiable

Examples of sustainable in a Sentence

a line of argument that is probably not sustainable in a public forum against skilled debaters

has no sustainable claim to the property without a deed or some other document

Recent Examples on the Web

The film directed by Vivian Sorenson and Jonathan Nastasi invites viewers to reevaluate the current American food system which has achieved massive scale, delivery of cheap calories to consumers and immense profits to mega corporations but at the expense of healthy food and sustainable practices. —Matthew Carey, Deadline, 29 Mar. 2026

Visit the community booths to learn about home electrification and sustainable transportation. —Anne Gelhaus, Mercury News, 29 Mar. 2026

Kraus said his focus on City Council would be on creating a secure, sustainable community where his own grandchildren could thrive by balancing proactive law enforcement with community support. —Nathan Pilling march 29, Kansas City Star, 29 Mar. 2026

Tech companies’ earnings have rocketed upward in the last few years, raising the question of how sustainable this amount of growth can be. —Sasha Rogelberg, Fortune, 29 Mar. 2026

Word History

First Known Use

1924, in the meaning defined at sense 1

Rhymes for sustainable

• trainable
• ascertainable
• unattainable
• unexplainable
• unobtainable
• unsustainable
• attainable
• explainable
• maintainable
• obtainable