1. (of documents, information, etc.) not officially secret; available to everyone Antonym : classified

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2. (specialist) that has not been classified as being the member of a particular group
   • (British English)
     ● A high proportion of candidates get low or unclassified grades (= their work is not good enough to receive a grade).
3. (British English) (of a road) not large or important enough to be given a number

[TahlilGaran] English Dictionary ▲