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

Hermès artisans still saddle stitch leather goods by hand and screen-print scarves using an archive of more than seventy-five thousand proprietary colors. — Lauren Collins, New Yorker, 7 Sep. 2026

Its dual neodymium drivers deliver 12W of clear audio backed by proprietary BassUp processing to enhance low-end frequencies without distortion. — Juhi Wadia, PC Magazine, 6 Sep. 2026

The brand's proprietary whitening system is designed to lift surface stains without penetrating enamel. — ABC News, 5 Sep. 2026

Whether developers use open-source or proprietary models, both require massive amounts of compute. — Alexa Lomonaco, CNBC, 5 Sep. 2026