unidentified

/ˌʌnaɪˈdɛntɪfaɪd/
adjective
  1. Not recognized or known; whose name or nature is not established.
    • An unidentified caller left a strange message on the answering machine.
    • Police found an unidentified body near the river yesterday.
    • The artist remained unidentified for decades until a letter was discovered.
  2. Not having been given a name or label; anonymous or unnamed.
    • The report cited an unidentified source within the company.
    • Several unidentified aircraft were detected on the radar.
    • The museum received a donation from an unidentified benefactor.
What does "unidentified" mean? | whatsthatwordmean | whatsthatwordmean