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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At the present time, with reusable rockets that require little maintenance (other that refueling) between launches, launch costs are finally coming down to approach the $1000 per kg milestone.—
Big Think,
Big Think,
24 Feb. 2026 -
Engineers plan to use a modern steel enclosure system, similar to the one installed at K East, to better protect the reactor structure from wind, sand, and freeze-thaw cycles while lowering long-term maintenance costs.—
Sujita Sinha,
Interesting Engineering,
24 Feb. 2026
Noun
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The property also supports the Pasang Lhamu Foundation – established in honor of Pasang Lhamu Sherpa, the first woman to scale Mount Everest – to fund the education and training of women from local communities and the preservation of local heritage.—
Condé Nast,
Condé Nast Traveler,
27 Feb. 2026
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The preservation group alleges the president bypassed proper procedures in tearing down the East Wing and soliciting private donations to fund the massive changes.—
Brittney Melton,
NPR,
27 Feb. 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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Eco effort As part of Hyatt, the hotel follows broader brand sustainability initiatives, including energy and water conservation measures, though this isn’t a property that foregrounds eco messaging.—
Condé Nast,
Condé Nast Traveler,
2 Mar. 2026
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Taylor Morrison, the developer of Creekview Ranch, designed the project to avoid the most sensitive areas and requested that the 27 acres along Dry Creek be dedicated for conservation.—
Nicole Buss,
Sacbee.com,
28 Feb. 2026
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Cite this Entry
“Sustentation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sustentation. Accessed 2 Mar. 2026.
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