incorporeal (adj.)

• airy
• astral
• bodiless
• disembodied
• ethereal
• form
• ghostlike
• ghostly
• hant
• immaterial
• impalpable
• imponderable
• incorporate
• insubstantial
• intangible
• metaphysical
• nonmaterial
• nonphysical
• occult
• otherworldly
• phantasmal
• phantom
• psychic
• revenant
• shadowy
• shape
• spectral
• spiritual
• supernatural
• transmundane
• unearthly
• unembodied
• unextended
• unsubstantial
• unworldly
• weightless
• wraithlike