didactic
US /daɪˈdæk.t̬ɪk/
UK /daɪˈdæk.t̬ɪk/
1.
intended to teach, particularly in having moral instruction as an ulterior motive
:
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The novel was too didactic, focusing more on moral lessons than storytelling.
•
His lectures were always didactic, aiming to impart knowledge and values.