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

Executive search firm Heidrick & Struggles has released its 2026 Skills Index, unveiling a top 15 most in-demand skills list based on its proprietary data. — Sheryl Estrada, Fortune, 18 Aug. 2026

The handoff demonstrated how operators could potentially use common interfaces to manage different autonomous systems instead of relying on proprietary control architectures. — Aamir Khollam, Interesting Engineering, 18 Aug. 2026

His answer is Jarvis, a proprietary AI operating layer now running across Everything Bagel Partners. — Ethan M. Stone, USA Today, 18 Aug. 2026

The company has its own proprietary blend of dough, sauce and cheese customers know and love. — Dallas Morning News, Chicago Tribune, 17 Aug. 2026