PROPRIETARY Synonyms: 18 Similar and Opposite Words

proprietary

adjective

Definition of proprietary

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

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of proprietary Inside Clarify Clinic’s proprietary centrifuge machine, which is designed to filter contaminants out of human blood. — Tracy Achonwa, Vogue, 23 Oct. 2026 Its proprietary model, Foundry, operates thousands of agents that calculate the probability of success for its clinical assets. — Katherine MacPhail, STAT, 23 Oct. 2026 This setup incorporates a proprietary set of grips, each one of which has an internal metal bolt running lengthwise from the outside end of the grip inwards. — New Atlas, 23 Oct. 2026 Pzaz, a monthly subscription service, provides creatives the opportunity to create storyboards and visuals of their ideas in minutes using a proprietary AI system. — Jesse Whittock, Deadline, 21 Oct. 2026 See All Example Sentences for proprietary

Recent Examples of Synonyms for proprietary

exclusive

Adjective

Early backers can secure their own handmade bronze EDC cutter before this exclusive batch sells out.

— New Atlas, New Atlas, 21 Oct. 2026
Less than six months ago, OpenAI said Microsoft would no longer have the exclusive license on its intellectual property.

— Jordan Novet, CNBC, 21 Oct. 2026

Definition of exclusive

Browse Nearby Words

propping (up)

proprietary

proprieties

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Style

“Proprietary.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/proprietary. Accessed 27 Oct. 2026.

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Synonyms of proprietary

adjective

Example Sentences

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