superfluous, trivial, tangential, unnecessary, inessential, unessential, unimportant, incidental, inconsequential, mundane, unneeded, distracting, nugatory, contentless, insubstantial, indigestible, gratuitous, irrelevant, frivolous, undesirable, textual, repetitive, germane, nonsensical, adverbial, undesired, repetitious, insignificant, banal, useless, trifling, footling, predigested, otiose, subjective, aleatory, hortatory, arcane, convolute, meaningless, pointless, uninteresting, inharmonious, nonproductive, preconscious, purposeless, distractive, mala fide, unsavory, extrinsic, esoteric, extenuating, nonrestrictive, duplicative, procedural, longwinded, ludic, minutest, unsubstantial, miscellaneous, expository, prosaic, terminological, abstruse, unauthentic, intangible, anthropic, aesthetical, obiter dictum, trite, tricksy, unobvious, disjunctive, mindless, hackneyed, procrustean, ulterior, devoid, nonmaterial, captious, weighty, unaesthetic, obscure, spurious, unrequested, anachronistic, stagey, superficial, odious, rote, meretricious, interruptive, actual, fleshly, vexatious, denotative, perfunctory, arbitrary, nitpicky, ostensive, objectionable, vacuous, adventitious, external, unrelated, extralinguistic, imponderable, perturbing, additional, arousing, extemal, extramusical, material, salient, unconnected, unwanted, weightier

adulterant, adulterating, adulteration, background, background noise, background signal, bare, concentration, debasement, embellishment, ground noise, impure, laminar flow clean room, open marriage, ornamentation, plain, pure, pureness, purity, rectify, refine, sheer, stripped, uncluttered, unlittered, unmingled, unmixed

adulterant, adulterating, external, extrinsic, foreign, immaterial, impertinent, irrelevant, outside