IPA: /nɒnˈdaɪdæktɪk/
KK: /nɑnˈdaɪdæktɪk/
Not intended to teach or instruct; lacking an educational purpose.
The film was entertaining and engaging, but it was completely nondidactic, offering no lessons or moral guidance.
Nondidactic → It is formed from "non-" (meaning not) and "didactic" (from Greek "didaktikos", meaning pertaining to teaching). The word "nondidactic" means not intended for teaching or educational purposes.
Think of 'non-' meaning not, and 'didactic' relating to teaching — so nondidactic refers to something that is not meant to teach.