un·named 
/ˌʌnˈneɪmd/ adjective
/ˌʌnˈneɪmd/ adjective 1 — used to indicate that a person's name is not mentioned or known ▪ The article quoted an unnamed source/official. ▪ She is believed to be one of the three unnamed candidates being considered for the position. 2 : not having a name
▪ The map shows an unnamed stream flowing down the side of the hill.
▪ The map shows an unnamed stream flowing down the side of the hill.
