• relating to a spiritual realm

Synonyms: supernatural, preternatural, transcendent, other-worldly, superhuman, mystical, mystic, spiritual, divine, heavenly, exalted, sublime, ethereal, numinous, transmundane, ineffable

• (in Kantian philosophy) presupposed in and necessary to experience; a priori

• (of a number, e.g. e or π) real but not a root of an algebraic equation with rational coefficients