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1. Relating to or resembling vapor: "They saw wild horses racing on the plain ... leaving in the moonlight a vaporous dust" (Cormac McCarthy).
a. Producing vapors; volatile.
b. Full of vapors.
3. Insubstantial, vague, or ethereal: "the imponderable mysterious and vaporous illusions of twilight" (John C. Powys).
4. Extravagantly fanciful; high-flown: vaporous conjecture.

va′por·os′i·ty (vā′pə-rŏs′ĭ-tē), va′por·ous·ness (-pər-əs-nĭs) n.
va′por·ous·ly adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.vaporousness - cloudiness resulting from haze or mist or vaporvaporousness - cloudiness resulting from haze or mist or vapor
murkiness, cloudiness, muddiness - the quality of being cloudy
References in periodicals archive ?
However, the vaporousness of this long-anticipated challenge to pay-TV hegemony may mean there's ulterior motives behind why we are seeing the Sony-Viacom deal floated at this time.
For a time, it was impossible for Flavin's best critics to ignore the vaporousness of the illuminating gas.
The vagueness of boredom, its vaporousness and its torpor, is part of its mild but genuine torment.