Synonyms of proprietary

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.

Related Words

• exclusive
• single
• sole
• personal
• unshared
• private

Dissimilar Words

• multiple
• public
• common
• joint
• cooperative
• mutual
• communal
• pooled
• shared
• conjoint
• united
• nonexclusive

Example Sentences

Recent Examples of proprietary

Revolut is pioneering a unique AI strategy in banking with its proprietary foundation model, PRAGMA, designed to understand financial behavior holistically. — Bernard Marr, Forbes.com, 8 July 2026

Secret recipes With each hot dog, Brockert secures a restaurant’s original ingredients and proprietary recipes, often getting brats and mustard flown in from across the country. — Danny Palumbo, Los Angeles Times, 7 July 2026

Malware can be difficult to detect, since automakers and other manufacturers usually cannot access a lidar maker’s proprietary source code and malware can remain dormant until triggered. — Melissa Lee,paige Tortorelli,scott Zamost, CNBC, 7 July 2026

This approach is used to produce everything from the 21C’s suspension components to its gearbox case, as well as multi-piece assemblies bonded together using proprietary adhesives. — Bradley Iger, ArsTechnica, 6 July 2026