Something that is superfluous is unnecessary or is no longer needed. My presence at the afternoon's proceedings was superfluous. more than is needed or wanted = unnecessary (superfluus, from superfluere )
(Adj ) -being more than is sufficient or required; excessive; unnecessary or needless
serving no useful purpose; having no excuse for being; "otiose lines in a play"; "advice is wasted words"
More than is wanted or is sufficient; rendered unnecessary by superabundance; unnecessary; useless; excessive; as, a superfluous price
more than is needed, desired, or required; "trying to lose excess weight"; "found some extra change lying on the dresser"; "yet another book on heraldry might be thought redundant"; "skills made redundant by technological advance"; "sleeping in the spare room"; "supernumerary ornamentation"; "it was supererogatory of her to gloat"; "delete superfluous (or unnecessary) words"; "extra ribs as well as other supernumerary internal parts"; "surplus cheese distributed to the needy"