SUSTAINABLE Synonyms: 138 Similar and Opposite Words

sustainable

adjective

sə-ˈstā-nə-bəl

Definition of sustainable

as in justifiable

capable of being defended with good reasoning against verbal attack a line of argument that is probably not sustainable in a public forum against skilled debaters

Synonyms & Similar Words

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Antonyms & Near Antonyms

as in verifiable

capable of being proven as true or real has no sustainable claim to the property without a deed or some other document

Synonyms & Similar Words

Antonyms & Near Antonyms

as in endurable

capable of being endured the general didn't think that such heavy casualties could be sustainable for much longer

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of sustainable In contrast, independent accrediting bodies constantly update their standards to keep up with trends like artificial intelligence, digital finance, cross-cultural leadership and sustainable business practices. — Habib Al Souleiman, Forbes.com, 23 Sep. 2026 Still others are addressing problematic supply chains—recovering and recycling scarce materials, reducing waste, improving traceability, and helping farmers and other suppliers earn a more sustainable living. — Jim Edwards, Fortune, 23 Sep. 2026 Children cannot simply wait for the healthcare system to become financially sustainable again. — Nicolette Natale, The Orlando Sentinel, 23 Sep. 2026 And that is sustainable neither for the sector nor for Netflix. — Elsa Keslassy, Variety, 23 Sep. 2026 See All Example Sentences for sustainable

Recent Examples of Synonyms for sustainable

Adjective

The tax revolt was a successful attempt by a small group of ideologues to capitalize on people’s justifiable anger at the cost-of-living crisis that followed the war in Vietnam, along with California’s runaway home prices.

— Maggie McGowan, The New York Review of Books, 5 Sep. 2026
The valuation of Fernandez is entirely justifiable within the context of the huge fees paid by several Premier League clubs, and specifically City, for high-level central midfielders this summer.

— Liam Twomey, New York Times, 19 Aug. 2026

Definition of justifiable

Adjective

Any brand attempting something similar should ask what its equivalent trust signal is—certification, a guarantee, a verifiable specification—before assuming volume of content alone will move a purchase decision.

— Agung Dwi Sandi, Forbes.com, 25 Sep. 2026
This one, go figure, is also not exactly immediately verifiable.

— Jon Blistein, Rolling Stone, 24 Sep. 2026

Definition of verifiable

Adjective

The output has to be supportable, reviewable and grounded in information that can actually survive scrutiny later.

— Arun Ramakrishnan, Forbes.com, 1 June 2026
Claims about artificial intelligence must be technically accurate, operationally supportable, and consistent with the company’s financial results.

— Perrie M. Weiner, Fortune, 23 Apr. 2026

Definition of supportable

Adjective

Professors have encountered demonstrable issues with widespread cheating, with many forced to devise their own methods for eliminating unethical AI use.

— Christopher Rim, Forbes.com, 21 Aug. 2026
America has witnessed a proliferation of voting rights groups with sound justification and demonstrable results, but there comes a point when there may be too much of a good thing.

— Jeffrey Sonnenfeld, Time, 28 June 2026

Definition of demonstrable

Adjective

Only 2 percent of global investments have gone to circular businesses, according to estimates in the Circularity Gap Report Finance in 2025, the world’s first empirical study that quantified the financial streams to circular business models.

— Roy Stephen Canivel, Footwear News, 25 Sep. 2026
Researchers have hypothesized that quantum effects are at play in a variety of biological phenomena — including the magnetic sense that helps birds navigate and, more speculatively, human consciousness — with varying degrees of empirical support.

— Elise Cutts, Quanta Magazine, 23 Sep. 2026

Definition of empirical

Adjective

Binding it all together is the chain-of-custody record that includes every handoff between teams, vendors and systems, with verification signatures that make each component's provenance independently confirmable.

— Akash Pugalia, Forbes.com, 17 July 2026
Cekada is only the third person to be confirmed to lead the agency since the director's position was made confirmable in 2006.

— Arkansas Online, Arkansas Online, 3 May 2026

Definition of confirmable

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sustain

sustainable

sustained

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“Sustainable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sustainable. Accessed 1 Oct. 2026.

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Synonyms of sustainable

adjective

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