academicism

Short definition from Wiktionary

Noun

1. 1
   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.
2. 2
   Traditional or orthodox formalism; conventionalism.
3. 3
   Speculative thoughts and attitudes.
4. 4
   A mannerism or mode peculiar to an academy.
5. 5
   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.