(Gram.) Designating a modifier, as a word, phrase, or subordinate clause, that limits the reference of the word or phrase it modifies and thus is essential to the meaning of a sentence
Conforming to the current styles or trends; stylish:
Not accompanied by others; single or sole:
Find another word for proprietary. In this page you can discover 14 synonyms, antonyms, idiomatic expressions, and related words for proprietary, like: proprietory, restrictive, proprietorship, propietary, fashionable, established, nonproprietary, exclusive, third party, software and patented.