1
as in maintenance
the act or activity of keeping something in an existing and usually satisfactory condition
argues that a new toll is needed to pay for the long-term sustentation of the city's bridges
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in preservation
the careful maintaining and protection of something valuable especially in its natural or original state
the all-important sustentation of Mount Vernon, Monticello, and other national treasures
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for sustentation
Noun
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Patients may then continue taking the medications for at least one or two additional years — what is known as maintenance treatment.—
The New York Times News Service Syndicate,
San Diego Union-Tribune,
27 Jan. 2026 -
Predictive maintenance will also advance rapidly.—
Peter Lyon,
Forbes.com,
27 Jan. 2026
Noun
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Coral planting in Costa Rica, women’s empowerment projects in Morocco, artisan preservation in Japan and Sweden, and elephant sanctuaries in Botswana are embedded into itineraries.—
Daniel Scheffler,
Forbes.com,
24 Jan. 2026
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Seeing venerable houses in disrepair, a pair of women’s volunteer groups founded in the late twenties—the Natchez Garden Club and the Pilgrimage Garden Club—launched the preservation mission and inaugurated the tours.—
Richard Brody,
New Yorker,
23 Jan. 2026
Noun
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There are solutions for age verification that are both accurate and privacy preserving.—
Annie Chestnut Tutor,
Boston Herald,
18 Aug. 2025
Noun
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Inside, immersive exhibits trace Roosevelt’s life, leadership, and conservation ideals through his writings and historical milestones.—
Taryn Shorr-Mckee,
Midwest Living,
11 Jan. 2026
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That’s because replacing windows can help with energy conservation, making the project eligible for this type of financing.—
R. Christian Smith,
Chicago Tribune,
11 Jan. 2026
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Cite this Entry
“Sustentation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sustentation. Accessed 31 Jan. 2026.
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