unidentified

Misollar

UFO stands for "unidentified flying object."
UFO stands for unidentified flying object.
Layla was shot by an unidentified attacker.
Admiral, an unidentified vessel is approaching our position.
Claudio reported an unidentified creature to the police.
Captain, there's an unidentified alien ship approaching.

sifat adjective

Not identified; having an unknown or unnamed identity.

Manbalar: Wiktionary (Free Dictionary API orqali), Datamuse, Tatoeba (CC BY 2.0 FR), MyMemory.