formulaic

adjective3

1. •
   Closely following a formula or predictable pattern.
2. •
   Conventionalized.

   • Homeric Greeks valued clichés because not only the poets but the entire oral noetic world or thought world relied upon the formulaic constitution of thought. — 1982
3. •
   Imitative; unoriginal; trite.

   • That TV series has become awfully formulaic in the last couple of seasons.