pseudonymous

American  

[soo-don-uh-muhs] / suˈdɒn ə məs /

adjective

1. bearing a false or fictitious name.

2. writing or written under a fictitious name.

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pseudonymous British  

/ sjuːˈdɒnɪməs /

adjective

1. having or using a false or assumed name

2. writing or having been written under a pseudonym

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Usage

What does pseudonymous mean? Pseudonymous means having, using, or written under a pseudonym—a false or fictitious name, especially one used by an author. The word is often used to describe a person who uses a pseudonym, as in the pseudonymous artist, or something attributed to a false name, as in her pseudonymous novels. When an author uses a pseudonym, it can also be called a pen name or a nom de plume. There are many reasons an author may choose to publish pseudonymously instead of under their own name, such as to avoid controversy or to create a persona. Many women authors throughout history have used a male or gender-neutral pseudonym to get their work published due to bias against women writers. A famous example is Mary Ann Evans, who used the pseudonym George Eliot. The word pseudonym can refer to a fake or false name used by anyone, not just writers. It’s typically used so a person can remain anonymous. In legal proceedings, the pseudonymous titles John Doe, Jane Doe, Richard Roe, and Jane Roe are used in cases when a person’s name is being kept anonymous. Such names can also be called anonyms. Example: It’s sometimes hard to tell whether pseudonymous posts are published by bots or real people.

Other Word Forms

• pseudonymously adverb
• pseudonymousness noun

Etymology

Origin of pseudonymous

1700–10; < Greek pseudṓnymos; pseudonym, -ous

Example Sentences

I could tell of the latest mystery I have read, the one by a pseudonymous author called Robert Galbraith.

From The Wall Street Journal • Dec. 12, 2025

On its website, it says the project has been founded and developed by "a pseudonymous collective" based across "multiple jurisdictions".

From BBC • Nov. 28, 2025

Some appear to have been relentlessly touted by unofficial and pseudonymous investor groups, according to documents and chat logs reviewed by Barron’s.

From Barron's • Nov. 18, 2025

The next pseudonymous presenter, who called himself the Lancaster Examiner, took a hyper-local focus on how NAR power gets built from the ground up.

From Salon • Oct. 20, 2024

Anonymous, an-on′im-us, adj. wanting a name: not having the name of the author, as distinguished from pseudonymous, when another than his real name has been given.—ns.

From Chambers's Twentieth Century Dictionary (part 1 of 4: A-D) by Various