Related formspseu·don·y·mous·ly, adverbpseu·don·y·mous·ness, noun
Can be confusedanonymous pseudonymous
Examples from the Web for pseudonymously
The secret is out now that J.K. Rowling pseudonymously wrote a detective novel, but is it any good?
The article was anonymously or pseudonymously forwarded to the Guardian, and was in due course published.Life And Letters Of John Gay (1685-1732)|Lewis Melville
The publisher of a foreign work published anonymously or pseudonymously is entitled to sue if his name is indicated on the work.