a. Obs. [f. ADEPT-IST, after analogy of chemist chemical, botanist botanical.] Of or pertaining to an Adeptist; alchemical.
1662. J. Chandler, Helmonts Oriatrike, 157. They who study in Adepticall things, do strive to promote their labour of wisdom by the objects of sight. Ibid., 7. Medicine Adeptical.
1801. Barrett, Magus, 26. According to the Adeptical philosophy.