aerial, aery, aeriform, celestial, airy, heavenly, supernal, gossamer, delicate, insubstantial, more...

earthy, tangible, material, corporeal, physical

spiritual, ghostly, astral, astral plane, astral projection, astral travel, astral body, more...

light, most, peculiar, upper, least, reticent, fresh, certain, vast

other worldly,   dream like,   most like a ghost,   ghost like,   angelic quality,   like a ghost,   other wordly,   fairy like,   more empyreal,   otherworldly beauty