1. [adj]  being or having an unknown or unnamed source; "a poem by an unknown author"; "corporations responsible to nameless owners"; "an unnamed donor"
2. [adj]  not yet identified; "an unidentifed species"; "an unidentified witness"

Unidentified
Freed from its long imprisonment, a malevolent force wreaks havoc on the world as it seeks the elimination of all humankind, and the only hope of survival lies in a few courageous individuals who must brave the perils of a mysterious house in which time, space, and reality have been inextricably intertwined with evil. Original.

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