[1] : The Collaborative International Dictionary of English v.0.48

anonymous \anon"ymous\, a. gr. ? without name; 'an priv. + ?,
   eol. for ? name. see name.
   nameless; of unknown name; also, of unknown or unavowed
   authorship; as, an anonymous benefactor; an anonymous
   pamphlet or letter.
   1913 webster
see also:
name 

[2] : WordNet (r) 2.0

anonymous
     adj 1: having no known name or identity or known source; "anonymous
            authors"; "anonymous donors"; "an anonymous gift"
            syn: anon. ant: onymous
     2: not known or lacking marked individuality; "brown anonymous
        houses"; "anonymous bureaucrats in the civil service"
see also:
anon. onymous 

[3] : Moby Thesaurus II by Grady Ward, 1.0

28 moby thesaurus words for "anonymous":
   closet, cryptonymic, cryptonymous, incognito, inmost, innermost,
   innominate, interior, intimate, inward, isolated, nameless,
   personal, private, privy, retired, secluded, sequestered,
   unacknowledged, undefined, undesignated, unidentified, unknown,
   unnamed, unrecognized, unspecified, withdrawn, without a name

[4] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

anonymous. without name. this word is applied to such.books, letters or
papers, which are published without the author's name. no man is bound to
publish his name in connexion with a book or paper he has published; but if
the publication is libellous, he is equally responsible as if his name were
published.

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Anonymous, definition of term: Anonymous
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Anonymous Ftp, definition of term: Anonymous Ftp
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