1.
You describe people or things as ~ when you do not know their name or when they do not have a name.
They can have their cases rejected, without reasons being given, by ~ officials.
ADJ: usu ADJ n
2.
If you say that someone or something will remain ~, you mean that you will not mention their name, often because you do not want to embarrass them.
A local friend who shall be ~ warned me that I was in for trouble soon.
= anonymous
ADJ: v-link ADJ