oneiric \oh-NY-rik\, adjective
Of, pertaining to, or suggestive of dreams; dreamy.
Her large images, which are cloaked in an elegant oneiric mist, transport the viewer to an ideal world where bodies seem to have become weightless ghosts of themselves.
-- Simona Vendrame, "Nature and the solitary self, translated by Jacqueline Smith", Temaceleste
Oneiric comes from Greek oneiros, "dream."