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

Relevance

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

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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 On the media-hosting side, Plex has discussed challenges in making lifetime passes financially sustainable. — Scharon Harding, ArsTechnica, 15 Oct. 2026 The Knight Foundation’s additional $10 million donation, announced Tuesday, is part of PMC’s new $38 million fundraising effort to help stations become more financially sustainable without federal funding. — ABC News, 14 Oct. 2026 Peace through dialogue is the only path toward sustainable security, economic growth, and prosperity. — Paul Tilsley, FOXNews.com, 14 Oct. 2026 And one of the core questions at the center of the conversation is whether 'sustainable' and 'data centers' can exist in the same sentence. — Chierstin Roth, CBS News, 14 Oct. 2026 See All Example Sentences for sustainable

Recent Examples of Synonyms for sustainable

Adjective

The most justifiable criticism against the DC detective series is that its mysteries play out wordily, without letting the audience in on how its space cops come to major conclusions.

— Siddhant Adlakha, Vulture, 5 Oct. 2026
Appalled by the failure to answer many questions, Democrats responded with what was often, though not always, justifiable outrage.

— David Wippman, Washington Post, 5 Oct. 2026

Definition of justifiable

Adjective

Distinguished by Miles Davis’ award-winning jazz score, the film established both Malle and Moreau as verifiable talents.

— Ed Meza, Variety, 13 Oct. 2026
The facility lacks a verifiable method that informs food employees of their responsibility to report their health status in regards to illnesses that can spread through food.

— Arkansas Online, Arkansas Online, 12 Oct. 2026

Definition of verifiable

Adjective

Publish a useful, supportable answer, then listen for whether the next conversations change.

— Dennis Kirwan, Forbes.com, 13 Oct. 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

For boards and CXOs, fault tolerance, error correction, economics and demonstrable advantage still matter.

— Rajjie Sarmey, Forbes.com, 16 Oct. 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

The risks posed by obesity, however, are based on more empirical data.

— Deidre McPhillips, CNN Money, 10 Oct. 2026
Both Fontaines were scouts well ahead of the deep empirical and objective analysis of baseball data — sabermetrics is the catchall term — that some believe has made scouts obsolete.

— Steve Henson, Los Angeles Times, 5 Oct. 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

Browse Nearby Words

sustain

sustainable

sustained

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“Sustainable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sustainable. Accessed 21 Oct. 2026.

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Synonyms of sustainable

adjective

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