Definition of "anonymous"

anonymous

/əˈnɒnəməs/

adjective
comparative more anonymous, superlative most anonymous
1. (not comparable) Lacking a name; not named, for example an animal not assigned to any species.
2. (not comparable) Without any name acknowledged of a person responsible
3. (not comparable) Of unknown name; whose name is withheld
  Quotations
  The shift in the balance of power online has allowed anyone to publish to the world, from dispirited teenagers in south London to an anonymous cyber-dissident in a Middle East autocracy.
  2012 April 19, Josh Halliday, “Free speech haven or lawless cesspool – can the internet be civilised?”, in the Guardian‎
4. (comparable, figurative) Lacking individuality.