Which word describes a work that is intended to teach excessively?

The term that describes a work intended to teach excessively is didactic. Didactic literature is characterized by its primary purpose of instructing or educating the reader and often incorporates moral lessons or philosophical concepts. Works that are didactic often have an overt educational agenda, elaborating on themes or concepts in a way that emphasizes teaching, sometimes at the expense of storytelling or narrative flow.

In contrast, pedantic also relates to teaching but emphasizes a superficial or overly formal level of detail, which may not be as universally instructive or relevant as didactic works. Expository refers to writing that aims to explain or inform but does not imply an excessive teaching style, while descriptive focuses on detailing the characteristics of a subject rather than imparting lessons. Thus, the strongest and most direct answer to suggest an excessive intent to teach is didactic.