1. using or written under a false name or pen name

Examples

• The pseudonymous author refused to reveal her true identity.
• Many bloggers write pseudonymous posts to protect their privacy.
• The pseudonymous novel became a bestseller despite the mystery surrounding its writer.
• He published pseudonymous articles in the underground newspaper.
• The pseudonymous Twitter account gained thousands of followers.
• Several pseudonymous works were later attributed to famous authors.