moralizing

(noun) indulgence in moral pronouncements; the exposition (often superficially) of a particular moral code. Synonyms: moralization, moralisation. Example: "His constant moralizing drove me mad."

(verb) interpret the moral meaning of. Synonyms: moralize, moralise. Example: "Moralize a story."

(verb) speak as if delivering a sermon; express moral judgements. Synonyms: sermonize, sermonise, preachify, moralize, moralise. Example: "This man always sermonizes."

(verb) improve the morals of. Synonyms: moralize, moralise.