accessory, accident, accidental, addendum, addition, additional, adjunct, adrift, adscititious, adventitious, aleatory, appendage, appurtenance, appurtenant, ascititious, auxiliary, back-burner, beside the mark, beside the point, beside the question, casual, circumstantial, collateral, conditional, contingency, contingent, de trop, dinky, dispensable, excess, expendable, expletive, extra, extraneous, extrinsic, fortuitous, gratuitous, happenstance, immaterial, impertinent, in excess, inadmissible, inapplicable, inapposite, inappreciable, inappropriate, incidental, inconsequent, inconsequential, inconsiderable, inessential, inferior, insignificant, irrelative, irrelevant, little, mere chance, minor, minute, needless, negligible, nihil ad rem, not at issue, not vital, not-self, occasional, off the subject, other, out-of-the-way, parenthetical, petit, pleonastic, prolix, provisional, redundant, secondary, small, spare, subsidiary, superadded, superaddition, supererogatory, superfluous, supervenient, supplement, supplemental, supplementary, tautologic, tautologous, technical, to spare, uncalled-for, unessential, unimpressive, unnecessary, unneeded, unnoteworthy, unrequired, verbose