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
Still, Dickerson has emphatically insisted that the team does not have any of JGR’s information, which is proprietary to each NASCAR team (since car setups account for a large part of the speed shown on the racetrack, along with the engine, driver and crew).
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Jeff Gluck, New York Times, 30 Apr. 2026
Three versions are available, with white and gray examples in the maison’s proprietary quartz TPT (Thin Ply Technology) and a black piece in carbon TPT.
—Rachel Cormack, Robb Report, 30 Apr. 2026
Our latest proprietary subscriber satisfaction study delivered the highest scores since its inception, reinforcing the strength of our value proposition.
—Caitlin Huston, HollywoodReporter, 30 Apr. 2026
Utilities are also investing in proprietary technologies, extending their capabilities beyond domestic use.
—Jijo Malayil, Interesting Engineering, 29 Apr. 2026
See All Example Sentences for proprietary
Jeff Gluck, New York Times, 30 Apr. 2026
Three versions are available, with white and gray examples in the maison’s proprietary quartz TPT (Thin Ply Technology) and a black piece in carbon TPT.
—Rachel Cormack, Robb Report, 30 Apr. 2026
Our latest proprietary subscriber satisfaction study delivered the highest scores since its inception, reinforcing the strength of our value proposition.
—Caitlin Huston, HollywoodReporter, 30 Apr. 2026
Utilities are also investing in proprietary technologies, extending their capabilities beyond domestic use.
—Jijo Malayil, Interesting Engineering, 29 Apr. 2026
See All Example Sentences for proprietary
Recent Examples of Synonyms for proprietary
exclusive
Adjective
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Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content.—
Rohan Nadkarni,
NBC news,
3 May 2026
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Vogue Runway is exclusive to subscribers.—
Irene Kim,
Vogue,
2 May 2026
Cite this Entry
“Proprietary.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/proprietary. Accessed 8 May. 2026.
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