PROPRIETARY Synonyms: 18 Similar and Opposite Words

proprietary

adjective

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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Example Sentences

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Recent Examples of proprietary Wax formulations are typically proprietary and shielded from disclosure by intellectual property and confidential business information laws. —

Kathryn Crawford, The Conversation, 3 June 2026 The gross margin decline included inventory write-downs relating to the transition of James Allen, which has become a proprietary brand within the Blue Nile website. —

David Moin, Footwear News, 2 June 2026 Yet many of those same organizations are now allowing employees to interact with powerful AI platforms capable of accessing, analyzing and potentially retaining proprietary information with little oversight. —

Emil Sayegh, Forbes.com, 1 June 2026 Perhaps this kind of info is too proprietary. —

Scott Powers, New York Times, 1 June 2026 See All Example Sentences for proprietary

Recent Examples of Synonyms for proprietary

exclusive

Adjective

Stay tuned for more exclusive editorial and social content from the night, including video interviews, outtakes, and more.

— Marcus Jones, IndieWire, 6 June 2026
Higher tiers mean better, more exclusive perks, like free breakfast, VIP deals of up to 25% off, and priority customer support, but members of all tiers get access to Insider Deals.

— Jamie Spain, Condé Nast Traveler, 6 June 2026