General Antonyms:
* Degradation: A decline in quality or moral standards.
* Deception: The act of misleading or deceiving.
* Ignorance: Lack of knowledge or information.
* Corruption: Dishonesty or moral decay.
* Depravity: Moral corruption or wickedness.
Antonyms focused on learning and understanding:
* Confusion: A state of bewilderment or uncertainty.
* Misinformation: False or inaccurate information.
* Misunderstanding: A failure to comprehend or interpret correctly.
* Delusion: A false belief or perception.
Antonyms focused on moral or spiritual development:
* Indoctrination: The process of teaching someone to accept a set of beliefs uncritically.
* Propaganda: Information, especially of a biased or misleading nature, used to promote a particular political cause or point of view.
* Indulgence: The act of giving way to one's desires or whims.
The best antonym for "edification" depends on the specific context in which you are using the word.