inessential, tenuous, unsubstantial, intangible, apparitional, nonexistence, weightless, empty, illusory, unreal, immaterial, spectral, vacuous, phantasmal, chimerical, ethereal, null, impalpable, insignificance, vacant.

uncomplete, unconcern, uncorrected, unconcealed, unconcerned, unconnected, uncompleted, unconquered, uncovered, uncolored.