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

Despite his proprietary knowledge of RFK’s operations, Bowers said Keselowski will not be held to any non-compete clauses and is free to race, own or lead competition for another Cup Series team. — Jeff Gluck, New York Times, 4 Oct. 2026

Moore said the company’s work with a major global bank demonstrates the operational value of combining proprietary intelligence, subject-matter expertise and implementation support. — Sheryl Estrada, Fortune, 2 Oct. 2026

Agrumato is a proprietary method of crushing whole ingredients with the olives to impart robust flavors. — Sean Timberlake, Sacbee.com, 2 Oct. 2026

Its proprietary software platform has become an industry standard, while newer computing platforms including Blackwell and Vera Rubin are expanding its capabilities. — Stephanie Link, CNBC, 2 Oct. 2026