Anonymous | Mean of anonymous in English Dictionary

/əˈnɑːnəməs/

• not named or identified
1. The donor wishes to remain anonymous.
2. An anonymous buyer purchased the painting.
• made or done by someone unknown
1. The college received an anonymous gift.
2. He made an anonymous phone call to the police.
3. The reporter got an anonymous tip.
• not distinct or noticeable
1. She works in an anonymous [=bland, nondescript] brick building.
2. His was just another anonymous face in the crowd.