vaporous

1. (figuratively)Examples: "So vvhoſoeuer ſhall entertaine high and vapourous imaginations, in ſteede of a laborious and ſober inquiry of truth ſhall beget hopes and Beliefes of ſtrange and impoſſible ſhapes."; "Now I recenter my immortal mind / In the deep sabbath of meek self-content; / Cleans'd from the vaporous passions that bedim / God's Image, sister of the Seraphim."; "The boundless, overflowing, bursting gladness, / The vapourous exultation not to be confined!"Synonyms: frothy, vain, vaporsomefiguratively

2. (figuratively)Examples: "[A]irily-attired ladies were lounging upon the chairs in the gardens of the Tuileries; only the most fragile and vaporous bonnets were to be seen in the Bois de Boulogne; […]"; "She carried herself no less attentively than usual, and kept no less anxious an eye upon her vaporous skirts; she held her bouquet very tight, and counted over the flowers for the twentieth time."figuratively