unidentified
adjective uk/ˌʌn.aɪˈden.tɪ.faɪd/ us/ˌʌn.aɪˈden.t̬ə.faɪd/
（名字）未知的，不明的，保密的
whose name is not known or is being kept secret
Police are investigating the death of an unidentified man whose body was found yesterday. 昨天发现的一具无名男尸，警方正在调查该案件。
The airline is currently having merger talks with an unidentified rival. 该航空公司目前正在与一个未透露身份的对手协商并购事宜。
Synonym: unnamed
See also: UFO