didacticism
an instructive or preachy tendency
Root
- didact: teach
Other words with the didact root
- autodidact: a self-taught person
- didact: a teacher or instructive person
- didactic: intended to teach; often overly instructive
Didacticism is teaching energy turned into a style, sometimes too loudly.
The novel had moments of warmth, but its didacticism made every chapter feel like a lecture.