Ideal beyond the mundane.
Ridiculous, ludicrous, or outrageous.
Preternatural or supernatural.
Strange, enigmatic, or mysterious.
Not of the earth; non-terrestrial.
Existing or operating without involvement by the body; solely mental or intellectual; “ungrounded”, “heady”.
Not united in a regimented structure; lacking structure and order.
Not expressed or exhibited in material or concrete form; wholly abstract.
Not incorporated into a coherent system; conceptually disconnected.
Incorporeal; not possessed of a body.