It's an adjective meaning more than necessary.
The word "superfluous" is an adjective, as indicated in its dictionary entry. Adjectives describe or modify nouns, providing information about qualities, quantities, or states. In this case, "superfluous" refers to something that is unnecessary or excessive.
Superfluous speech is excessive or unnecessary communication that adds no value or meaning to a conversation. It often includes redundant or repetitive information that does not contribute to the discussion's purpose.
superfluous
A superfluous comment is not welcome. Superfluous means unnecesary or extra.
Sandy had a superfluous amount of candy, so she shared the rest with her friends.
leave words out of a quote. An ellipsis is used for the omission from speech or writing of a word or words that are superfluous or able to be understood from contextual clues.
The part of speech for this particular word is a noun.
part of speech
The Diary of a Superfluous Man was created in 1850.
I have a superfluous penis.. That simple get popped like a pimple..
The part of speech for "answer" is a noun.
what part of speech is beneath