"All that you say is entirely enigmatical to me.

Order the horses to be put to immediately!" Emily had listened to the course of this conversation, which had sufficiently explained to her whatever was enigmatical in the first appearance of the bailiffs.

To him they were largely inscrutable; they were cryptic, as enigmatical as life itself, hiding their treasures as they droned through the centuries, giving birth to multitudes of the living, demanding in return other multitudes of the dead.

Perhaps his most remarkable discovery was that of Chlamydomyxa labyrinthuloides (in 1868), "one of the most remarkable and enigmatical of all known microscopic organisms.