as in exclusive
belonging to only one person, unit, or group and not used by or available to others
The restaurant's proprietary recipe for barbecue sauce is only known to the head chef.
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Recent Examples of proprietary
The company’s proprietary filter, paired with a brushless drain motor and silicone brush, allows the Scuba S1 to meticulously maintain up to 1,600 square feet.
—
Mariana Best, Better Homes & Gardens, 27 June 2025
Its non-sticky, no-flake formula is powered by a proprietary styling agent dubbed Alpha XTR, which delivers extreme hold with a surprisingly lightweight feel.
—Jailynn Taylor, Allure, 26 June 2025
Helly Hansen’s proprietary three-layer shell proved positively impenetrable over a season of testing, including several spring snowstorms while ski-touring.
—The Editors, Outside Online, 26 June 2025
Goldman Sachs even built its own proprietary email client.
—Leo Schwartz, Fortune, 26 June 2025
See All Example Sentences for proprietary
Mariana Best, Better Homes & Gardens, 27 June 2025
Its non-sticky, no-flake formula is powered by a proprietary styling agent dubbed Alpha XTR, which delivers extreme hold with a surprisingly lightweight feel.
—Jailynn Taylor, Allure, 26 June 2025
Helly Hansen’s proprietary three-layer shell proved positively impenetrable over a season of testing, including several spring snowstorms while ski-touring.
—The Editors, Outside Online, 26 June 2025
Goldman Sachs even built its own proprietary email client.
—Leo Schwartz, Fortune, 26 June 2025
See All Example Sentences for proprietary
Recent Examples of Synonyms for proprietary
exclusive
Adjective
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Download it now for the most binge-worthy celeb content, exclusive video clips, astrology updates and more! Swag — available to stream now on Spotify and Apple Music — features guest spots from Gunna, Sexxy Red, Cash Cobain, Lil B, Eddie Benjamin and more.—
Latoya Gayle,
People.com,
11 July 2025
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Includes unlimited digital access and exclusive subscriber-only content.—
Nena Farrell,
Wired News,
11 July 2025
Cite this Entry
“Proprietary.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/proprietary. Accessed 16 Jul. 2025.
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