Academicism. (n.d.). In YourDictionary. Retrieved from https://www.yourdictionary.com/academicism
(classical studies, sometimes capitalized) The doctrines of Plato's academy; specifically the skeptical doctrines of the later academy stating that nothing can be known; a tenet of the Academic philosophy; state of being Academic. [First attested in the early 17th century.]
In this way, and, so far as the present writer can see, in this way only, it is possible to understand the extraordinary revolution which converted Platonism, philosophical and dogmatic, into Academicism, scientific and sceptical.