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
But perhaps the most impressive space here is the proprietary MRI room, which offers a full-body scan that’s even more detailed than the standalone tests that have recently become popular.
—
Justin Fenner, Robb Report, 10 July 2025
Space 11 is following in the steps of film producers like Imax, which has developed proprietary cameras to shoot its own big screen documentaries in outer space over the decades.
—Etan Vlessing, HollywoodReporter, 10 July 2025
Virtual events can open the door to serious threats like data breaches, phishing attacks and unauthorized access to proprietary content.
—Michele Dobnikar, Forbes.com, 1 July 2025
The latter were inspired by uranium glass and are realized via a complex, proprietary, two-week process involving hand-poured layering and molecular stabilization.
—Miles Socha, Footwear News, 28 June 2025
See All Example Sentences for proprietary
Justin Fenner, Robb Report, 10 July 2025
Space 11 is following in the steps of film producers like Imax, which has developed proprietary cameras to shoot its own big screen documentaries in outer space over the decades.
—Etan Vlessing, HollywoodReporter, 10 July 2025
Virtual events can open the door to serious threats like data breaches, phishing attacks and unauthorized access to proprietary content.
—Michele Dobnikar, Forbes.com, 1 July 2025
The latter were inspired by uranium glass and are realized via a complex, proprietary, two-week process involving hand-poured layering and molecular stabilization.
—Miles Socha, Footwear News, 28 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 20 Jul. 2025.
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