Acroamatic

{ Ac′ro‐a‐mat″ic (�), Ac′ro‐a‐mat″ic‐al (�), } a. Communicated orally; oral; — applied to the esoteric teachings of Aristotle, those intended for his genuine disciples, in distinction from his exoteric doctrines, which were adapted to outsiders or the public generally. Hence: Abstruse; profound.