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

If proprietary data is the one thing a competitor cannot buy, there are two very different ways to turn it into an advantage, and most companies build the wrong one. — Stephen Messer, Fortune, 29 Oct. 2026

Software became much more complicated and proprietary, charging you monthly fees to run on remote servers. — Ruben Circelli, PC Magazine, 29 Oct. 2026

Yeti is moving further into performance apparel with two merino wool styles made using Nuyarn Technologies’ proprietary spinning technology. — Alexandra Harrell, Footwear News, 29 Oct. 2026

Governments hostile to the United States, notably China, have sought to establish seemingly legitimate business and academic relationships to gain access to proprietary information. — Sam Mullins, Foreign Affairs, 28 Oct. 2026