Synonyms and related words :
de trop, dispensable, disposable, excess, expendable, expletive, gratuitous, in excess, inessential, needless, nonessential, pleonastic, prolix, redundant, spare, supererogatory, superfluous, surplus, tautologic, tautologous, to spare, uncalled-for, unessential, unneeded, unrequired, unwanted, verbose