anonymous

The anonymous donor contributed a large sum of money to the charity.

The online forum allows users to post anonymous comments.

She received an anonymous letter accusing her of wrongdoing.

The artist wishes to remain anonymous to protect their privacy.

The police received an anonymous tip about the location of the suspect.

An anonymous source revealed information about the company's financial troubles.

The book was written by an anonymous author.

The website allows users to make anonymous purchases.

The anonymous feedback from customers helped improve the product.

She received an anonymous gift on her doorstep.