ˈkɹɪptɪk diːp ˌɪnˈskɹuːtəbl̩ mɪˈstɪəɹi.əs məˈstɪɹi.əs of an obscure nature the new insurance policy is written without cryptic or mysterious terms a deep dark secret the inscrutable workings of Providence in its mysterious past it encompasses all the dim origins of life rituals totally mystifying to visitors from other lands