Definition: having no known name or identity or known source
Usage: anonymous authors; anonymous donors; an anonymous gift
Similar words: unidentified, unknown, unnamed, nameless
Definition: being or having an unknown or unnamed source
Usage: a poem by an unknown author; corporations responsible to nameless owners; an unnamed donor
Synonyms: anonymous
Definition: not known or lacking marked individuality
Usage: brown anonymous houses; anonymous bureaucrats in the Civil Service
Similar words: faceless
Definition: without a face or identity
Usage: a faceless apparition; the faceless accusers of the police state