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proprietary Synonyms

Another word for proprietary

Choosing another word for proprietary depends on context, so the 15 synonyms and similar words below are separated across 4 exact definitions and ranked by match strength.
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• adjective (Context 1)

Manufactured, marketed, or held under an exclusive legal right, such as a patent, copyright, trademark, or trade secret.

Usage Example

"The firm developed a patented algorithm that competitors are legally barred from copying."

Strong
patented
branded
copyrighted
trademarked
exclusive
closed-source

• adjective (Context 2)

Relating to an owner or ownership, or behaving as if one were the owner of someone or something.

Usage Example

"The curator took a possessive pride in the museum's newly restored collection."

Strongest
possessive
Strong
territorial

• noun (Context 3)

An owner or proprietor, or a body of proprietors collectively (especially one granted a colonial territory in early North American history).

Usage Example

"In the seventeenth century, the land was governed by a wealthy proprietor under a royal charter."

Strongest
proprietor
owner
Strong
landholder
titleholder

• noun (Context 4)

The state or legal right of owning property; proprietorship.

Usage Example

"Disputes over the ownership of the estate lasted in the courts for decades."

Strongest
ownership
proprietorship
Strong
possession

Opposites of proprietary

The opposite of proprietary shifts depending on context. Common opposites include:

nonproprietary
generic
open-source
public
tenant
unpossessive
See all opposites of proprietary

Cite this Entry


Wordmom. (2026). Synonyms for Proprietary. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/proprietary
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