oneiric

oneiric \oh-NY-rik\, adjective:

Of, pertaining to, or suggestive of dreams; dreamy.

On this score, the novel might easily drift off into an oneiric never-never land, but Mr. Welch doesn't let this happen.
-- Peter Wild, "Visions of Blackfoot", New York Times, November 2, 1986

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

Some -- not all -- of Caravaggio's painting uniquely compels you to grope for words in order to describe the optical novelty and disturbing immediacy of the images. They're at once coldly precise, voluptuously real and strangely oneiric.
-- Peter Robb, "Candid camera", The Guardian, October 20, 2001

Oneiric comes from Greek oneiros, "dream."