Synonyms and related words :
adrift, aerial, airy, apparitional, asomatous, astral, back-burner, beside the mark, beside the point, beside the question, bodiless, celestial, decarnate, decarnated, dinky, discarnate, disembodied, dispensable, ephemeral, ethereal, evanescent, extramundane, extraneous, extrinsic, fanciful, flimsy, foreign, ghostly, heavenly, illusory, imaginary, impalpable, impertinent, imponderable, inadmissible, inapplicable, inapposite, inappreciable, inappropriate, incidental, inconsequent, inconsequential, inconsiderable, incorporate, incorporeal, inessential, inferior, insensible, insignificant, insubstantial, intangible, irrelative, irrelevant, light, little, merely nominal, metaphysical, minor, minute, negligible, nihil ad rem, nonessential, nonmaterial, nonphysical, nonsubstantial, not at issue, not real, not vital, nugatory, occult, off the subject, otherworldly, out-of-the-way, parenthetical, petit, petty, phantom, psychic, shadowy, slight, small, spiritual, subjective, supernatural, technical, transmundane, trifling, trivial, unactual, unconcrete, unearthly, unembodied, unessential, unextended, unfleshly, unimportant, unimpressive, unnoteworthy, unphysical, unreal, unrealistic, unsolid, unsubstanced, unsubstantial, unworldly, weightless