Adimantus (Α᾿δείμαντος), or Ademantus (Α᾿δήμαντος), one of Manes' twelve disciples, who, according to Photius (Contra Man. i, 14) and Petrus- Siculus (Hist. Man.. xvi), was sent as a missionary into various regions. He seems to have met with special success in North Africa, where he was held in high veneration till the time of Augustine (Contra Adim. xii, 2; Contra Faust. i, 2). He wrote a book, apparently in Latin, in which he endeavored to prove a contradiction between the Old Test. and the New, taking passages chiefly from the Pentateuch, but also a few from the Psalms, Proverbs, and the prophets. This was refuted by Augustine (ut sup.). In other ancient documents (see Zotelier, Patres Apost. i, 544), this work is ascribed to Addas (q.v.) as well as to Adimantus; and Augustine states (Contra Adb. Leg. ii, 42) that Addas was the praenomen of Adimantus. Hence considerable confusion has. arisen .among later writers' respecting these two persons.