Thesaurus

proprietary

adjective

Synonyms & Antonyms of proprietary

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.

Synonyms & Near Synonyms for proprietary

Antonyms & Near Antonyms for proprietary

See the Dictionary Definition 

Keep scrolling for more

Learn More About proprietary

Time Traveler for proprietary

Time Traveler

The first known use of proprietary was in the 15th century

See more words from the same century

Thesaurus Entries Near proprietary

propping (up)

proprietary

proprieties

See More Nearby Entries 

Cite this Entry

“Proprietary.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/proprietary. Accessed 1 Aug. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on proprietary

Nglish: Translation of proprietary for Spanish Speakers

Britannica English: Translation of proprietary for Arabic Speakers

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!