Unearthly

Adjective

 * 1) Not of the earth.
 * 2) Non-terrestrial.
 * 3) Preternatural or supernatural.
 * 4) Strange, enigmatic, or mysterious.
 * 5) Ideal beyond the mundane.
 * 6) Ridiculous, ludicrous, or outrageous.

Thesaurus
Christlike, Christly, Elysian, God-fearing, Olympian, a bit thick, a bit thin, abnormal, absurd, airy, angelic, arcane, asomatous, astral, balmy, beatific, beatified, beyond belief, bizarre, blessed, blue, bodiless, cadaverous, celestial, corpselike, crazy, creepy, curious, deadly, deathlike, deathly, deathly pale, decarnate, decarnated, discarnate, disembodied, doubtable, doubtful, dubious, dubitable, eccentric, eerie, eldritch, esoteric, ethereal, extramundane, extraordinary, extrasensory, extraterrestrial, fantastic, fey, freaked out, freaky, from on high, funny, ghastly, ghostlike, ghostly, glorified, godlike, godly, godly-minded, good, grisly, gruesome, haggard, hard of belief, hard to believe, heavenly, holy, holy-minded, hypernormal, hyperphysical, immaterial, impalpable, implausible, imponderable, in glory, inconceivable, incorporate, incorporeal, incredible, insane, insubstantial, intangible, kooky, livid, loony, lurid, macabre, miraculous, mortuary, mysterious, nonmaterial, nonphysical, not deserving belief, numinous, occult, odd, oddball, off, off the wall, open to doubt, open to suspicion, otherworldly, out, outlandish, outrageous, pale, paradisaic, paradisal, paradisiac, paradisic, passing belief, passing strange, peculiar, phantom, preposterous, preterhuman, preternatural, preternormal, pretersensual, problematic, psychic, psychical, pure, pure in heart, purehearted, quaint, queer, questionable, ridiculous, righteous, saintlike, saintly, seraphic, shadowy, silly, singular, spectral, spiritual, spiritual-minded, spookish, spooky, staggering belief, strange, sublime, superhuman, superior, supermundane, supernal, supernatural, supernormal, superphysical, supersensible, supersensory, supersensual, supramundane, supranatural, suspect, suspicious, tall, thick, thin, transcendental, transmundane, unbelievable, uncanny, unconvincing, unembodied, unextended, unfleshly, ungodly, unheard-of, unhuman, unimaginable, unnatural, unphysical, unreal, unreasonable, unsubstantial, unthinkable, unusual, unworldly, unworthy of belief, wacky, wan, weird, wondrous strange